Perhaps you should try some spelling variations:
"Industrial development research operation" » "Industrial development report operation", "Industrial development research cooperation", "Industrial development research population", "Industrial development research generation"
"industrial development reform period" » "industrial development report period", "industrial development reports period", "industrial development forum period"

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 reform period") or ("Industrial development research operation"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial development reform period") OR ("Industrial development research operation"))*.
• Removing quotes may allow a broader search: (( industrial development reform period ) or ( Industrial development research operation ))*.