Perhaps you should try some spelling variations:
"skill development studies." » "skill development series.", "skill development services.", "skill development strategies.", "skills development studies.", "social development studies.", "rural development studies."
"child development studies." » "child development series.", "child development services.", "child development strategies.", "world development studies."
"e development africa." » "_ development africa.", "a development africa.", "sme development africa."

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: (((("skill development studies.") OR ("child development studies."))) or ("e development africa."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("skill development studies.") OR ("child development studies."))) OR ("e development africa.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"skill development studies.\") OR (\"child development studies.\"))) or (\"e development africa.\"))".
• Removing quotes may allow a broader search: (((( skill development studies. ) OR ( child development studies. ))) or ( e development africa. )).
• Adding a wildcard symbol may retrieve word variants: (((("skill development studies.") OR ("child development studies."))) or ("e development africa."))*.