Perhaps you should try some spelling variations:
"fop petriv OR petrov OR periuv OR periuv OR pero OR petru OR petriu OR petr o.s.*" » "fop peteriv OR peterov OR periuv OR periuv OR pero OR peteru OR peteriu OR peter o.s.*" (Expand Search), "fop petriiv OR petriov OR periuv OR periuv OR pero OR petriu OR petriiu OR petri o.s.*" (Expand Search), "fop petroiv OR petroov OR periuv OR periuv OR pero OR petrou OR petroiu 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 (petriv OR (((petrov OR periuv) OR periuv) OR ((pero OR (petru OR petriu)) OR petr))) o.s.*.