Perhaps you should try some spelling variations:
"fop peroiv OR petruo OR petr OR peter OR petrui OR petru OR petri o.s.*" » "fop peroiv OR petro OR petr OR peter OR petrui OR petru OR petri o.s.*" (Expand Search), "fop peroiv OR petrouo OR petro OR peter OR petroui OR petrou OR petroi o.s.*" (Expand Search), "fop peroiv OR peruo OR per OR peter OR perui OR peru OR peri o.s.*" (Expand Search), "fop peroiv OR pentruo OR petr OR peter OR pentrui 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 (peroiv OR (petruo OR ((petr OR peter) OR ((petrui OR petru) OR petri)))) o.s.*.