Perhaps you should try some spelling variations:
"fop petruv OR petriu OR peterov OR peteruiv OR petriiv OR peteriiiv OR petr o.s.*" » "fop petruv OR petriu OR peterov OR peterdi OR petriiv OR peteriiiv OR petr o.s.*" (Expand Search), "fop peteruv OR peteriu OR peterov OR peteruiv OR peteriiv OR peteriiiv OR peter o.s.*" (Expand Search), "fop petriuv OR petriiu OR peterov OR peteruiv OR petriiiv OR peteriiiv OR petri o.s.*" (Expand Search), "fop petruuv OR petruiu OR peterov OR peteruiv OR petruiiv OR peteriiiv 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 (petruv OR ((petriu OR (peterov OR (peteruiv OR (petriiv OR peteriiiv)))) OR petr)) o.s.*.