Perhaps you should try some spelling variations:
"fop petrv OR peterov OR petruov OR peteruo OR petriuo OR petr OR petri o.s.*" » "fop petrov OR peterov OR petruov OR peteruo OR petriuo OR petr OR petri o.s.*" (Expand Search), "fop petru OR peterov OR petruov OR peteruo OR petriuo OR petr OR petri o.s.*" (Expand Search), "fop petro OR peterov OR petruov OR peteruo OR petriuo OR petr OR petri o.s.*" (Expand Search), "fop petrv OR petrov OR petruov OR peteruo OR petriuo OR petr OR petri o.s.*" (Expand Search), "fop petrv OR peterov OR petrov OR peteruo OR petriuo OR petr OR petri o.s.*" (Expand Search), "fop peterv OR peterov OR peteruov OR peteruo OR peteriuo OR peter OR peteri o.s.*" (Expand Search), "fop petruv OR peterov OR petruuov OR peteruo OR petruiuo OR petru OR petrui o.s.*" (Expand Search), "fop petrov OR peterov OR petrouov OR peteruo OR petroiuo OR petro OR petroi 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 (petrv OR ((peterov OR petruov) OR ((peteruo OR petriuo) OR (petr OR petri)))) o.s.*.