Departments Redwood page does not return any search results

I have enabled redwood page for departments and set the following profile values. But when I search for a department the search does not report any result. Do I need to follow any additional steps for the search to work ? Any help would be appreciated.

ORA_HCM_VBCS_PWA_ENABLED --> Y

ORA_PER_DEPARTMENTS_REDWOOD_ENABLED --> Yes

HRC_ELASTIC_SEARCH_ENABLED --> Y

ORA_PER_ORACLE_SEARCH_DEPARTMENTSLOV_ENABLED --> Y

Thanks