Hi Sarala,
If you check this search help in data collection area there is one standard table "CRMD_AC_ASSF4_05", this supposed to get fill to display values in your search help.
Check whether this table has any entries in your system.
Actually this "CRMD_AC_ASSF4_05" table is getting filled from ECC system using a RFC function module created in CRM system, There is one standard report program in ECC system to fill this table.
Program name : IAOM_CRMSRV_F4_UPLOAD, in selection parameter check cost center check box and select Update run in mode section. Then system will ask for logical system ID, select your CRM system ID.
Please share results with us.
Best Regards,
Dharmakasi.