Perhaps you should try some spelling variations:
"fop petriov OR petrov OR petro OR petru OR per OR peteriuo OR periuo OR petr o.s.*" » "fop petriov OR petriv OR petri OR petru OR per OR peteriuo OR periuo OR petr o.s.*" (Expand Search), "fop peteriov OR peterov OR petero OR peteru OR per OR peteriuo OR periuo OR peter o.s.*" (Expand Search), "fop petriiov OR petriov OR petrio OR petriu OR per OR peteriuo OR periuo 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 ((petriov OR petrov) OR (((petro OR (petru OR per)) OR (peteriuo OR periuo)) OR petr)) o.s.*.