Perhaps you should try some spelling variations:
"fop petriuv OR petruov OR peruov OR petero OR pero OR petru OR perio OR petr o.s.*" » "fop peteriuv OR peteruov OR peruov OR petero OR pero OR peteru OR perio OR peter o.s.*" (Expand Search), "fop petriiuv OR petriuov OR peruov OR petero OR pero OR petriu OR perio OR petri o.s.*" (Expand Search), "fop petroiuv OR petrouov OR peruov OR petero OR pero OR petrou OR perio 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 ((petriuv OR (petruov OR peruov)) OR ((((petero OR pero) OR petru) OR perio) OR petr)) o.s.*.