Perhaps you should try some spelling variations:
resource agencies » resource centres, resource policies
training resource » training resources, teaching resource, training research
resource series » resource studies, resource settings, resource centres
resource survey » resource curse, resource strategy, resource studies
wbi training » _ training, job training, re training
a learning » _ learning, e learning

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( a learning ((resource series) or (resource agencies)). ) or ( wbi training resource survey. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( a learning ((resource series) OR (resource agencies)). ) OR ( wbi training resource survey. )).
• Adding a wildcard symbol may retrieve word variants: (( a learning ((resource series) or (resource agencies)). ) or ( wbi training resource survey. ))*.