Perhaps you should try some spelling variations:
"child development studies." » "child development series.", "child development services.", "child development strategies.", "world development studies."
"a development studies." » "a development series.", "a development services.", "a development strategies."
"wbi development strategy." » "2 development strategy.", "3 development strategy."

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

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