Perhaps you should try some spelling variations:
"fop petriov OR peterv OR petro OR petero OR peteru OR peru OR petr o.s.*" » "fop petriov OR peterv OR petrov OR petero OR peteru OR peru OR petr o.s.*" (Expand Search), "fop petriov OR peterv OR petri OR petero OR peteru OR peru OR petr o.s.*" (Expand Search), "fop petriov OR peterv OR petru OR petero OR peteru OR peru OR petr o.s.*" (Expand Search), "fop petriov OR peterv OR petro OR petero OR peteru OR petru OR petr o.s.*" (Expand Search), "fop petriov OR peterv OR petro OR petero OR peteru OR per OR petr o.s.*" (Expand Search), "fop peteriov OR peterv OR petero OR petero OR peteru OR peru OR peter o.s.*" (Expand Search), "fop petriiov OR peterv OR petrio OR petero OR peteru OR peru OR petri o.s.*" (Expand Search), "fop petruiov OR peterv OR petruo OR petero OR peteru OR peru OR petru 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 peterv) OR ((((petro OR petero) OR peteru) OR peru) OR petr)) o.s.*.