Perhaps you should try some spelling variations:
"fop petruv OR peteruv OR petro OR pero OR petru OR petriu OR peteru OR petr o.s.*" » "fop petruv OR peteruv OR petrov OR pero OR petru OR petriu OR peteru OR petr o.s.*" (Expand Search), "fop petruv OR peteruv OR petri OR pero OR petru OR petriu OR peteru OR petr o.s.*" (Expand Search), "fop peteruv OR peteruv OR petero OR pero OR peteru OR peteriu OR peteru OR peter o.s.*" (Expand Search), "fop petriuv OR peteruv OR petrio OR pero OR petriu OR petriiu OR peteru OR petri o.s.*" (Expand Search), "fop peruv OR peteruv OR pero OR pero OR peru OR periu OR peteru OR per 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 ((petruv OR peteruv) OR (((petro OR pero) OR ((petru OR petriu) OR peteru)) OR petr)) o.s.*.