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