Perhaps you should try some spelling variations:
"industrial development policies survey" » "industrial development policy survey", "industrial development projects survey", "industrial development policies sources"
"industrial development forest period" » "industrial development forum period", "industrial developing forest period", "industrial development progress period", "industrial development rest period", "industrial development rest periods", "industrial development forest operation"

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