Perhaps you should try some spelling variations:
"agriculture and rural development policies." » "agriculture and rural development policy.", "agriculture and rural development projects."
"agriculture and social development series." » "agriculture and social development services.", "agriculture and social development agencies.", "agriculture and social development strategies."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("agriculture and social development series.") or ("agriculture and rural development policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("agriculture and social development series.") OR ("agriculture and rural development policies.")).
• Removing quotes may allow a broader search: (( agriculture and social development series. ) or ( agriculture and rural development policies. )).
• Adding a wildcard symbol may retrieve word variants: (("agriculture and social development series.") or ("agriculture and rural development policies."))*.