Perhaps you should try some spelling variations:
"Industrial development research population" » "Industrial development report population", "Industrial development research cooperation", "Industrial development research motivation", "Industrial development research location"
"industrial development results operation" » "industrial development report 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 results operation") OR ("Industrial development research population"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"industrial development results operation\") OR (\"Industrial development research population\"))".
• Removing quotes may allow a broader search: (( industrial development results operation ) OR ( Industrial development research population )).
• Adding a wildcard symbol may retrieve word variants: (("industrial development results operation") OR ("Industrial development research population"))*.