Perhaps you should try some spelling variations:
"industrial development efforts series" » "industrial development report series", "industrial development reports series", "industrial development efforts sometimes", "industrial development exporters series"
"industrial development load periods" » "industrial development local periods", "industrial development broad periods", "industrial development leads periods", "industrial development loan period", "industrial development peak periods"

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 efforts series") or ("industrial development load periods"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial development efforts series") OR ("industrial development load periods"))*.
• Removing quotes may allow a broader search: (( industrial development efforts series ) or ( industrial development load periods ))*.