Step 1.
The problem details is here, seems like Arcgis Pro locator design like that.
ArcPro locator defect 3 letter cross street name not working ( 911 POI )
If you want 3 letter cross street working, the path of make ESRI change pro locator is not works.
But a alternative way of change the source input data field is a possible path.
Step 2.
Google AI solution is here, would AI replace human brain ?
https://www.google.com/search?q=how+to+get+arcgis+pro+locator+search+cross+street+by+use+3+letter+on+first+street&sa=X&sca_esv=ba24c2d2484ecd3d&rlz=1C1RXQR_enUS1149US1149&sxsrf=AE3TifPKwa56AvsTr3ECgXMHj9c1a31k6w%3A1756331642837&udm=50&fbs=AIIjpHxU7SXXniUZfeShr2fp4giZud1z6kQpMfoEdCJxnpm_3YlUqOpj4OTU_HmqxOd8LCYAmZcz3xp4-s3ijYzIP40LlddfBAhJDuHsBzPcairVH6jEyLRYOBQgKx39vFebUA6gMRyOjUtKr2tAgLt8-riYCxo7cqYvgVIxY_03doEIFjWWiF6brNIzAObqF7XNPBoa6nWqDYwiLKQb2ooNcABsdF3WMg&aep=1&ntc=1&ved=2ahUKEwjkk7ed_auPAxXCOUQIHYW5AiAQ2J8OegQIEBAD&biw=1920&bih=945&dpr=1&mtid=Kn-vaOKrN9TokPIPqrCAoAg&mstk=AUtExfCFKl8uSkZqbktw5lrNtQvDuPdIXT44j1Jt2TEWg9mnf_MJQDu1ittfnxCUuj1Lr7wTZZU3VdJJTFUHIulsTahi6QFFfyIVhZud44d_hKKVgApYi15qTrB2wIxKiXssOhk7xqNrvo1ZEpGGFUdOEvWo6jh87mG59BX0xfdPXCv4VgdsnEg42nmUVZuf-ZsDCeGQEf7FczWH3kpyzebCLI0xGQFCVvlOSY-mG2seN2Pb_PF8GLyeAG-INL_6heZ53zEFKA-MxcI4LfGzQssfNdwWkISIDbt4ZjHXOhz_QEvr9xXaK49GIC8k9ddoW0TsHa7JrQVour_IfQ&csuir=1
if you read each sentence, make sense. If you put all sentence together, not make sense. It is a collection of sentence from multiple article, multiple source website. Sentences does not have logic between.

Step 3.
human brain can be inspired by something they saw, they feel, they understand.
Day 1, something happened, human brain can be inspired by this thing to reach solution 1.
Day 2, saw some youtube video about nature, about animal, could be anything, then inspired different solution 2.
Day 3, went to travel, inspired to solution 3.
Day 4, went to car repair shop, talk to someone, inspired to solution 4.
Day 5, anything could happen, human brain is slow but can endlessly create endless solution.
Google Ai is fast, but is not going to be inspired by car repair shop, not by travel, not by animal, nature youtube video,
But human brain can inspired by any unrelated things easily.
Because you can not change the way pro locator works, so change the source data input field is a work around alternative.
This idea was inspired by previously success fix search address not show all POI ( 911 POI ) part 1
Let's create a new field just for 3 letter street name (StreetName3)

Step 4.
populate new field with only first 3 letter of original street name

Step 5.
mapping street name to 3 letter street name field

Step 6.
must define cross street connector, otherwise, search cross street will not work

Step 7.
3 letter for 1st street name works, but does not show full street name on result, need further improvement,
3 letter "gag" for full street name "gage"
2 letter "st" for full street name "state"

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