Perhaps you should try some spelling variations:
"fop petrov OR petrov OR petro OR petriu OR petrio OR peteru OR petruo OR petr o.s.*" » "fop petriv OR petriv OR petri OR petriu OR petrio OR peteru OR petruo OR petr o.s.*" (Expand Search), "fop petruv OR petruv OR petru OR petriu OR petrio OR peteru OR petruo OR petr o.s.*" (Expand Search), "fop peterov OR peterov OR petero OR peteriu OR peterio OR peteru OR peteruo OR peter o.s.*" (Expand Search), "fop petriov OR petriov OR petrio OR petriiu OR petriio OR peteru OR petriuo OR petri o.s.*" (Expand Search), "fop petruov OR petruov OR petruo OR petruiu OR petruio OR peteru OR petruuo 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 ((petrov OR petrov) OR (((((petro OR petriu) OR petrio) OR peteru) OR petruo) OR petr)) o.s.*.