Perhaps you should try some spelling variations:
"fop periv OR petris OR petru OR petruv OR petruov OR peterov OR petr OR petri o.s.*" » "fop periv OR petris OR pentru OR pentruv OR pentruov OR peterov OR petr OR petri o.s.*" (Expand Search), "fop periv OR petris OR petru OR petrov OR petruov OR peterov OR petr OR petri o.s.*" (Expand Search), "fop periv OR petris OR petru OR petruv OR petrov OR peterov OR petr OR petri o.s.*" (Expand Search), "fop periv OR petris OR petru OR petruv OR petruov OR petrov OR petr OR petri o.s.*" (Expand Search), "fop periv OR peteris OR peteru OR peteruv OR peteruov OR peterov OR peter OR peteri o.s.*" (Expand Search), "fop periv OR petrois OR petrou OR petrouv OR petrouov OR peterov OR petro OR petroi o.s.*" (Expand Search), "fop periv OR peris OR peru OR peruv OR peruov OR peterov OR per OR peri 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 (((periv OR petris) OR (petru OR petruv)) OR (((petruov OR peterov) OR petr) OR petri)) o.s.*.