Perhaps you should try some spelling variations:
"venezuela, republic bulgaria _" » "venezuela, republics bulgaria _", "venezuela, public bulgaria _", "venezuela, republic hungary _"
"venezuela, republic bolivia _" » "venezuela, republic bohemia _", "venezuela, republic moravia _", "venezuela, republic political _"

Try widening your search to All Fields.

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

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