Perhaps you should try some spelling variations:
"fop peteriv OR petriiiv OR peteriiiv OR petruiov OR petrov OR petruov OR petr o.s.*" » "fop peteriv OR peteriiiv OR peteriiiv OR peteruiov OR peterov OR peteruov OR peter o.s.*" (Expand Search), "fop peteriv OR petriiiiv OR peteriiiv OR petriuiov OR petriov OR petriuov OR petri o.s.*" (Expand Search), "fop peteriv OR petruiiiv OR peteriiiv OR petruuiov OR petruov OR petruuov 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 ((peteriv OR (petriiiv OR peteriiiv)) OR ((petruiov OR (petrov OR petruov)) OR petr)) o.s.*.