Perhaps you should try some spelling variations:
"fop petriov OR petroiov OR peteriiov OR peteroiv OR petroooiv OR petri OR petr o.s.*" » "fop petriov OR petrov OR peteriiov OR peteroiv OR petroooiv OR petri OR petr o.s.*" (Expand Search), "fop petriov OR petroiov OR peteriiov OR petrov OR petroooiv OR petri OR petr o.s.*" (Expand Search), "fop petriov OR petroiov OR peteriiov OR peterdi OR petroooiv OR petri OR petr o.s.*" (Expand Search), "fop peteriov OR peteroiov OR peteriiov OR peteroiv OR peteroooiv OR peteri OR peter o.s.*" (Expand Search), "fop petruiov OR petruoiov OR peteriiov OR peteroiv OR petruoooiv OR petrui OR petru o.s.*" (Expand Search), "fop petroiov OR petrooiov OR peteriiov OR peteroiv OR petrooooiv OR petroi OR petro 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 ((((petriov OR petroiov) OR peteriiov) OR (peteroiv OR petroooiv)) OR (petri OR petr)) o.s.*.