Perhaps you should try some spelling variations:
"fop petris OR peteriv OR peruiv OR petr OR petriu OR petru OR petruo OR peter o.s.*" » "fop petri OR peteriv OR peruiv OR petr OR petriu OR petru OR petruo OR peter o.s.*" (Expand Search), "fop petriis OR peteriv OR peruiv OR petri OR petriiu OR petriu OR petriuo OR peter o.s.*" (Expand Search), "fop petrois OR peteriv OR peruiv OR petro OR petroiu OR petrou OR petrouo OR peter o.s.*" (Expand Search), "fop peris OR peteriv OR peruiv OR per OR periu OR peru OR peruo OR peter o.s.*" (Expand Search), "fop petris OR peteriv OR peruiv OR petr OR petri OR petru OR petruo OR peter o.s.*" (Expand Search), "fop petris OR peteriv OR peruiv OR petr OR petriu OR pentru OR pentruo OR peter o.s.*" (Expand Search), "fop petris OR peteriv OR peruiv OR petr OR petriu OR petri OR petrio OR peter o.s.*" (Expand Search), "fop petris OR peteriv OR peruiv OR petr OR petriu OR petru 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 (((petris OR peteriv) OR peruiv) OR (((petr OR (petriu OR petru)) OR petruo) OR peter)) o.s.*.