Perhaps you should try some spelling variations:
"european lagging countries." » "european aging countries.", "european emerging countries.", "european sending countries.", "europe aging countries."
"europe's union countries." » "europe's income countries.", "european union's countries.", "europe's regions countries."
"european union countries." » "european income 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: (((((("europe's union countries.") OR ("european union countries."))) or ("european lagging countries."))) or ("europe's arab countries."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("europe's union countries.") OR ("european union countries."))) OR ("european lagging countries."))) OR ("europe's arab countries."))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"europe's union countries.\") OR (\"european union countries.\"))) or (\"european lagging countries.\"))) or (\"europe's arab countries.\"))*".
• Removing quotes may allow a broader search: (((((( europe's union countries. ) OR ( european union countries. ))) or ( european lagging countries. ))) or ( europe's arab countries. ))*.