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

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