Perhaps you should try some spelling variations:
"industrial investment politics series" » "industrial investments politics series", "industry investment politics series", "initial investment politics series", "industrial investment political series", "industrial investment policies series", "industrial investments political series", "industrial investment policy series"
"industrial development aid series" » "industrial development a series", "industrial development africa series", "industrial development agenda series", "industrial development aid services", "industrial development mind series", "industrial development d series"

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