Perhaps you should try some spelling variations:
"a development agencies." » "a development policies.", "a government agencies.", "_ development agencies.", "asian development agencies.", "city development agencies."
"clean development series." » "clean development services.", "clean development africa.", "clean development strategies.", "human development series.", "urban development series."
"child development series." » "child development services.", "child development africa.", "child development strategies.", "world development series."

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: (((("clean development series.") OR ("child development series."))) or ("a development agencies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("clean development series.") OR ("child development series."))) OR ("a development agencies.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"clean development series.\") OR (\"child development series.\"))) or (\"a development agencies.\"))".
• Removing quotes may allow a broader search: (((( clean development series. ) OR ( child development series. ))) or ( a development agencies. )).
• Adding a wildcard symbol may retrieve word variants: (((("clean development series.") OR ("child development series."))) or ("a development agencies."))*.