Perhaps you should try some spelling variations:
"fop peterov OR petruuov OR petruo OR petrov OR petriov OR peteriov OR petr o.s.*" » "fop peterov OR peteruuov OR peteruo OR peterov OR peteriov OR peteriov OR peter o.s.*" (Expand Search), "fop peterov OR petriuuov OR petriuo OR petriov OR petriiov OR peteriov OR petri o.s.*" (Expand Search), "fop peterov OR petruuuov OR petruuo OR petruov OR petruiov OR peteriov OR petru 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 ((peterov OR petruuov) OR ((petruo OR (petrov OR (petriov OR peteriov))) OR petr)) o.s.*.