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

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: (((("a development strategies.") or ("a development series."))) or ("clean development strategy."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a development strategies.") OR ("a development series."))) OR ("clean development strategy.")).
• Removing quotes may allow a broader search: (((( a development strategies. ) or ( a development series. ))) or ( clean development strategy. )).
• Adding a wildcard symbol may retrieve word variants: (((("a development strategies.") or ("a development series."))) or ("clean development strategy."))*.