Perhaps you should try some spelling variations:
"fop periuv OR peteroiuov OR petrov OR periuiov OR petri OR petru OR petr o.s.*" » "fop periuv OR peteroiuov OR peterov OR periuiov OR peteri OR peteru OR peter o.s.*" (Expand Search), "fop periuv OR peteroiuov OR petroov OR periuiov OR petroi OR petrou OR petro o.s.*" (Expand Search), "fop periuv OR peteroiuov OR perov OR periuiov OR peri OR peru 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 (((periuv OR peteroiuov) OR (petrov OR periuiov)) OR ((petri OR petru) OR petr)) o.s.*.