Perhaps you should try some spelling variations:
"european union's countries." » "european nine countries."
"european region countries." » "european origin countries.", "european region country.", "european creditor countries."
"european union countries." » "european income countries."
"europe's asian countries." » "europe's african countries.", "europe's riparian countries.", "europe's client countries."
"europe's arab countries." » "europe's african countries.", "europe's market countries.", "europe's across countries."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("european union's countries.") or ((((("european region countries.") OR ("european union countries."))) or ("europe's asian countries."))))) or ("europe's arab countries."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("european union's countries.") OR ((((("european region countries.") OR ("european union countries."))) OR ("europe's asian countries."))))) OR ("europe's arab countries.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"european union's countries.\") or (((((\"european region countries.\") OR (\"european union countries.\"))) or (\"europe's asian countries.\"))))) or (\"europe's arab countries.\"))".
• Removing quotes may allow a broader search: (((( european union's countries. ) or ((((( european region countries. ) OR ( european union countries. ))) or ( europe's asian countries. ))))) or ( europe's arab countries. )).
• Adding a wildcard symbol may retrieve word variants: (((("european union's countries.") or ((((("european region countries.") OR ("european union countries."))) or ("europe's asian countries."))))) or ("europe's arab countries."))*.