Perhaps you should try some spelling variations:
"fop peterv OR peterv OR petrov OR petr OR petero OR petri OR per o.s.*" » "fop peter OR peter OR petrov OR petr OR petero OR petri OR per o.s.*" (Expand Search), "fop peters OR peters OR petrov OR petr OR petero OR petri OR per o.s.*" (Expand Search), "fop peterv OR peterv OR petro OR petr OR petero OR petri OR per o.s.*" (Expand Search), "fop peterv OR peterv OR peterov OR peter OR petero OR peteri OR per o.s.*" (Expand Search), "fop peterv OR peterv OR petruov OR petru OR petero OR petrui OR per o.s.*" (Expand Search), "fop peterv OR peterv OR petroov OR petro OR petero OR petroi OR per o.s.*" (Expand Search), "fop peterv OR peterv OR petrov OR petr OR peter OR petri OR per o.s.*" (Expand Search), "fop peterv OR peterv OR petrov OR petr OR peters OR petri OR per o.s.*" (Expand Search), "fop peterv OR peterv OR petrov OR petr OR petro OR petri 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 ((peterv OR peterv) OR (petrov OR (((petr OR petero) OR petri) OR per))) o.s.*.