Perhaps you should try some spelling variations:
"fop petroov OR petriuoov OR petroi OR petr OR petru OR peter o.s.*" » "fop petrov OR petriuoov OR petroi OR petr OR petru OR peter o.s.*" (Expand Search), "fop petroov OR petriuoov OR petri OR petr OR petru OR peter o.s.*" (Expand Search), "fop petroov OR petriuoov OR petro OR petr OR petru OR peter o.s.*" (Expand Search), "fop petroov OR petriuoov OR petrov OR petr OR petru OR peter o.s.*" (Expand Search), "fop petrioov OR petriiuoov OR petrioi OR petri OR petriu OR peter o.s.*" (Expand Search), "fop petrooov OR petroiuoov OR petrooi OR petro OR petrou OR peter o.s.*" (Expand Search), "fop peroov OR periuoov OR peroi OR per OR peru OR peter o.s.*" (Expand Search), "fop petroov OR petriuoov OR petroi OR petr OR pentru OR peter o.s.*" (Expand Search), "fop petroov OR petriuoov OR petroi OR petr OR petri 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 ((petroov OR petriuoov) OR (petroi OR ((petr OR petru) OR peter))) o.s.*.