Perhaps you should try some spelling variations:
"fop petrv OR petr OR petru OR peter OR petroi OR per o.s.*" » "fop petrov OR petr OR petru OR peter OR petroi OR per o.s.*" (Expand Search), "fop petri OR petr OR petru OR peter OR petroi OR per o.s.*" (Expand Search), "fop petro OR petr OR petru OR peter OR petroi OR per o.s.*" (Expand Search), "fop petriv OR petri OR petriu OR peter OR petrioi OR per o.s.*" (Expand Search), "fop petrov OR petro OR petrou OR peter OR petrooi OR per o.s.*" (Expand Search), "fop petrv OR petr OR pentru OR peter OR petroi OR per o.s.*" (Expand Search), "fop petrv OR petr OR petri OR peter OR petroi OR per o.s.*" (Expand Search), "fop petrv OR petr OR petru OR peter OR petri OR per o.s.*" (Expand Search), "fop petrv OR petr OR petru OR peter OR petro OR per o.s.*" (Expand Search), "fop petrv OR petr OR petru OR peter OR petrov 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 (petrv OR (((petr OR petru) OR peter) OR (petroi OR per))) o.s.*.