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

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

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