Solution : https://service.sap.com/sap/support/notes/1134557 (SAP Service marketplace login required)
Key words :
SRET, STREX, T77RCF_MDL_PRM, T77RCF_UI_PARAM, switch UNICODE_CHKS_IN_SRCH, search with search engine service (SES), general search settings, TREX
Related Notes :
| 1319517 | Unicode Collection Note |
| 1134784 | Language-dependent search for publications |
| 1098046 | BF HCM_ERC_SES_1: Enhancements of the search functions |
| 980570 | PA-ER: Enable/Disable Language independent Searches |