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 africa."

Try widening your search to All Fields.

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."))*.