Trex Search not returning result

Hi Experts,

I need your help to understand how TREX search is work. Currently I need to create autocomplete control(Fuzzy logic if user enter wrong spell on Product Description) on BSP. I found FM 'TREX_EXT_SEARCH_CELL_TABLE' which has query table of type TREXS_QUERY_ENTRY. I wanted to understand what information I need to pass in this structure. Below is sample data I am passing

LOCATION             = OBJECT_DESCRIPTION

VALUE1                 = ADDERALL 7( Actual product description: ADDERALL 7.5 MG TAB 100)

VALUE2              

ROWTYPE             = ATTRIBUTE

OPERATOR           = EQ

CONTENT_TYPE    = A

TERM_ACTION        = F

FUZZY_SIMILARITY = 7000

INDEX_ID                = 3

if I enter ADDERALL 7.5 then my result is coming else trex is not returning anything.

Test scenarios like

1 ADDERALL TAD

2 ADD ERALL 7.5 MG TAB 100

3 ADDERALL 75 TAB

Can anybody please help. If you have any document for this please provide me(jonwal.nikhil@gmail.com)

Thank,

Nikhilesh