Perhaps you should try some spelling variations:
"_ development studies." » "_ development series.", "_ development services.", "_ development strategies."
"clean development process." » "clean development projects.", "clean development programs.", "clean development policies.", "human development process.", "urban development process.", "child development process."
"e development strategy." » "a development strategy.", "sme development strategy.", "mine 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: (((("_ development studies.") or ("e development strategy."))) or ("clean development process."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ development studies.") OR ("e development strategy."))) OR ("clean development process.")).
• Removing quotes may allow a broader search: (((( _ development studies. ) or ( e development strategy. ))) or ( clean development process. )).
• Adding a wildcard symbol may retrieve word variants: (((("_ development studies.") or ("e development strategy."))) or ("clean development process."))*.