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