Perhaps you should try some spelling variations:
"fop petruv OR petriuv OR petrov OR petruov OR petrio OR petr OR peter o.s.*" » "fop petru OR petriuv OR petrov OR petruov OR petrio OR petr OR peter o.s.*" (Expand Search), "fop petruv OR petriuv OR petro OR petruov OR petrio OR petr OR peter o.s.*" (Expand Search), "fop petruv OR petriuv OR petrov OR petruov OR petri OR petr OR peter o.s.*" (Expand Search), "fop petruv OR petriuv OR petrov OR petruov OR petris OR petr OR peter o.s.*" (Expand Search), "fop petruv OR petriuv OR petrov OR petruov OR petro OR petr OR peter o.s.*" (Expand Search), "fop petriuv OR petriiuv OR petriov OR petriuov OR petriio OR petri OR peter o.s.*" (Expand Search), "fop petruuv OR petruiuv OR petruov OR petruuov OR petruio OR petru OR peter o.s.*" (Expand Search), "fop petrouv OR petroiuv OR petroov OR petrouov OR petroio OR petro OR peter 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 petriuv) OR (((petrov OR petruov) OR petrio) OR (petr OR peter))) o.s.*.