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 results operation" » "industrial development report operation", "industrial development research operation", "industrial development results section"

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 results operation"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial development efforts series") OR ("industrial development results operation")).
• Removing quotes may allow a broader search: (( industrial development efforts series ) or ( industrial development results operation )).
• Adding a wildcard symbol may retrieve word variants: (("industrial development efforts series") or ("industrial development results operation"))*.