Perhaps you should try some spelling variations:
"industrial development efforts series" » "industrial development report series", "industrial development reports series", "industrial development efforts sometimes", "industrial development exporters series"
"industrial development risk periods" » "industrial development russia periods", "industrial development review periods", "industrial development rights periods", "industrial development rest periods", "industrial development crisis periods", "industrial development time periods"

Try widening your search to All Fields.

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