Perhaps you should try some spelling variations:
"international technological economics theories" » "international technology economics theories", "interaction technological economics theories", "interactions technological economics theories", "international ecological economics theories", "international technologies economics theories", "international technological economic theories", "international technological economics series", "international technological economics theory"
"international policy economic series" » "international poverty economic series", "international prices economic series", "national policy economic series", "international policy economics series", "international policy economic services", "international policy economy series"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("international technological economics theories") or ("international policy economic series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international technological economics theories") OR ("international policy economic series"))*.
• Removing quotes may allow a broader search: (( international technological economics theories ) or ( international policy economic series ))*.