Perhaps you should try some spelling variations:
"industrial development reporting period" » "industrial development report period", "industrial development reports period", "industrial development accounting period"
"industrial development policies sources" » "industrial development policy sources", "industrial development projects sources", "industrial development policies series", "industrial development policies survey", "industrial development policies discourses"

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