Perhaps you should try some spelling variations:
"fop petruov OR perov OR petri OR peteri OR petruo OR peruo OR peteri OR petr o.s.*" » "fop petruov OR petrov OR petri OR peteri OR petruo OR peruo OR peteri OR petr o.s.*" (Expand Search), "fop peteruov OR perov OR peteri OR peteri OR peteruo OR peruo OR peteri OR peter o.s.*" (Expand Search), "fop petruuov OR perov OR petrui OR peteri OR petruuo OR peruo OR peteri OR petru o.s.*" (Expand Search), "fop petrouov OR perov OR petroi OR peteri OR petrouo OR peruo OR peteri OR petro o.s.*" (Expand Search)

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

• Removing quotes may allow a broader search: fop ((petruov OR perov) OR ((((petri OR peteri) OR (petruo OR peruo)) OR peteri) OR petr)) o.s.*.