Perhaps you should try some spelling variations:
"industrial development repayment periods" » "industrial development department periods", "industrial development payments periods", "industrial development employment periods", "industrial development repayment period"
"industrial development reports series" » "industrial development report series", "industrial development efforts series", "industrial development results series", "industrial development reprints series"

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

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