Perhaps you should try some spelling variations:
"fop petruv OR petruiov OR peteriiov OR petrui OR petroui OR petr o.s.*" » "fop petruv OR petrov OR peteriiov OR petrui OR petroui OR petr o.s.*" (Expand Search), "fop peteruv OR peteruiov OR peteriiov OR peterui OR peteroui OR peter o.s.*" (Expand Search), "fop petriuv OR petriuiov OR peteriiov OR petriui OR petrioui OR petri o.s.*" (Expand Search), "fop petruuv OR petruuiov OR peteriiov OR petruui OR petruoui 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 (petruiov OR peteriiov)) OR ((petrui OR petroui) OR petr)) o.s.*.