Perhaps you should try some spelling variations:
"fop petriv OR petriiiv OR petruiiiv OR peteruiiiv OR petruo OR petruiu OR petr o.s.*" » "fop peteriv OR peteriiiv OR peteruiiiv OR peteruiiiv OR peteruo OR peteruiu OR peter o.s.*" (Expand Search), "fop petriiv OR petriiiiv OR petriuiiiv OR peteruiiiv OR petriuo OR petriuiu OR petri o.s.*" (Expand Search), "fop petruiv OR petruiiiv OR petruuiiiv OR peteruiiiv OR petruuo OR petruuiu 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 (petriiiv OR (petruiiiv OR peteruiiiv))) OR ((petruo OR petruiu) OR petr)) o.s.*.