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

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