Perhaps you should try some spelling variations:
"industrial development countries period" » "industrial developing countries period", "industrial developed countries period", "industrial development congresses period", "industrial development countries perform", "industrial development countries imperial", "industrial development countries periodicals"
"industrial development rest period" » "industrial development west period", "industrial development best period", "industrial development forest period", "industrial development rest periods", "industrial development test period", "industrial development last 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 rest period") or ("industrial development countries period"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial development rest period") OR ("industrial development countries period"))*.
• Removing quotes may allow a broader search: (( industrial development rest period ) or ( industrial development countries period ))*.