Perhaps you should try some spelling variations:
"fop petrov OR petroi OR petruoi OR petrio OR petri OR petru OR petr OR peter o.s.*" » "fop petro OR petroi OR petruoi OR petrio OR petri OR petru OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petro OR petruoi OR petrio OR petri OR petru OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petrow OR petruoi OR petrio OR petri OR petru OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petroi OR petruoi OR petris OR petri OR petru OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petroi OR petruoi OR petro OR petri OR petru OR petr OR peter o.s.*" (Expand Search), "fop petrov OR petroi OR pentruoi OR petrio OR petri OR pentru OR petr OR peter o.s.*" (Expand Search), "fop petroov OR petrooi OR petrouoi OR petroio OR petroi OR petrou OR petro OR peter o.s.*" (Expand Search), "fop perov OR peroi OR peruoi OR perio OR peri OR peru OR per 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 (petrov OR ((((petroi OR petruoi) OR (petrio OR petri)) OR petru) OR (petr OR peter))) o.s.*.