Perhaps you should try some spelling variations:
"fop petruov OR petriov OR petriiov OR peteriiov OR petero OR petr o.s.*" » "fop petruov OR petriov OR petrov OR peteriiov OR petero OR petr o.s.*" (Expand Search), "fop peteruov OR peteriov OR peteriiov OR peteriiov OR petero OR peter o.s.*" (Expand Search), "fop petriuov OR petriiov OR petriiiov OR peteriiov OR petero OR petri o.s.*" (Expand Search), "fop petruuov OR petruiov OR petruiiov OR peteriiov OR petero 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 (((petruov OR petriov) OR (petriiov OR peteriiov)) OR (petero OR petr)) o.s.*.