Perhaps you should try some spelling variations:
"venezuela, republica bolivariana _" » "venezuela, republic bolivia _", "venezuela, republica bolivarian _", "venezuela, republica bolivariana de", "venezuela, republica boliviana _"
"venezuela, republics bulgariaa _" » "venezuela, republics bulgaria _", "venezuela, republic bulgaria _", "venezuela, public bulgaria _"
"venezuela, republica ovarian _" » "venezuela, republica nacion _", "venezuela, republica paris _"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("venezuela, republica ovarian _") OR ((("venezuela, republica bolivariana _") OR ("venezuela, republics bulgariaa _")))).
• Removing quotes may allow a broader search: (( venezuela, republica ovarian _ ) or ((( venezuela, republica bolivariana _ ) or ( venezuela, republics bulgariaa _ )))).
• Adding a wildcard symbol may retrieve word variants: (("venezuela, republica ovarian _") or ((("venezuela, republica bolivariana _") or ("venezuela, republics bulgariaa _"))))*.