Perhaps you should try some spelling variations:
"international planned economies some" » "international panel economies some", "international plant economies some", "international land economies some", "international advanced economies some", "international planned economics some", "international planned economies more", "international planned economies size"
"international air economies has" » "international aid economies has", "international airshow economies has", "international airport economies has", "international main economies has", "international war economies has", "international oil economies has", "international air economics has", "international air economies have", "international air economies a"

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: (("international planned economies some") or ("international air economies has"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international planned economies some") OR ("international air economies has")).
• Removing quotes may allow a broader search: (( international planned economies some ) or ( international air economies has )).
• Adding a wildcard symbol may retrieve word variants: (("international planned economies some") or ("international air economies has"))*.