Perhaps you should try some spelling variations:
"fop petriv OR periv OR petruiiiv OR petruiov OR petroi OR peteru OR petr o.s.*" » "fop petriv OR periv OR petruiiiv OR petrov OR petroi OR peteru OR petr o.s.*" (Expand Search), "fop peteriv OR periv OR peteruiiiv OR peteruiov OR peteroi OR peteru OR peter o.s.*" (Expand Search), "fop petriiv OR periv OR petriuiiiv OR petriuiov OR petrioi OR peteru OR petri o.s.*" (Expand Search), "fop petruiv OR periv OR petruuiiiv OR petruuiov OR petruoi OR peteru 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 ((((petriv OR periv) OR petruiiiv) OR petruiov) OR ((petroi OR peteru) OR petr)) o.s.*.