Perhaps you should try some spelling variations:
"fop petriv OR peteruov OR peterov OR petruuov OR peteruiuv OR petri OR petr o.s.*" » "fop petriv OR petrov OR peterov OR petruuov OR peteruiuv OR petri OR petr o.s.*" (Expand Search), "fop petriv OR peteruov OR peterov OR petrov OR peteruiuv OR petri OR petr o.s.*" (Expand Search), "fop peteriv OR peteruov OR peterov OR peteruuov OR peteruiuv OR peteri OR peter o.s.*" (Expand Search), "fop petruiv OR peteruov OR peterov OR petruuuov OR peteruiuv OR petrui OR petru o.s.*" (Expand Search), "fop petroiv OR peteruov OR peterov OR petrouuov OR peteruiuv OR petroi OR petro 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 (peteruov OR (peterov OR petruuov))) OR peteruiuv) OR (petri OR petr)) o.s.*.