Perhaps you should try some spelling variations:
"fop petrov OR peterov OR petriov OR petr OR per OR petru OR petri o.s.*" » "fop petro OR peterov OR petriov OR petr OR per OR petru OR petri o.s.*" (Expand Search), "fop peterov OR peterov OR peteriov OR peter OR per OR peteru OR peteri o.s.*" (Expand Search), "fop petroov OR peterov OR petroiov OR petro OR per OR petrou OR petroi o.s.*" (Expand Search), "fop petrov OR peterov OR petriov OR petr OR per OR pentru OR petri 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 peterov) OR petriov) OR ((petr OR per) OR (petru OR petri))) o.s.*.