Perhaps you should try some spelling variations:
"fop petriov OR petro OR petroio OR petero OR petr OR petroi OR peter o.s.*" » "fop petriov OR petrov OR petrovio OR petero OR petr OR petrovi OR peter o.s.*" (Expand Search), "fop petriov OR petri OR petriio OR petero OR petr OR petrii OR peter o.s.*" (Expand Search), "fop petriov OR petru OR petruio OR petero OR petr OR petrui 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 ((petriov OR petro) OR ((petroio OR petero) OR ((petr OR petroi) OR peter))) o.s.*.