Perhaps you should try some spelling variations:
"fop petriiv OR peteriiv OR petrov OR petruuio OR peteruio OR peterdi OR petr o.s.*" » "fop peteriiv OR peteriiv OR peterov OR peteruuio OR peteruio OR peterdi OR peter o.s.*" (Expand Search), "fop petriiiv OR peteriiv OR petriov OR petriuuio OR peteruio OR peterdi OR petri o.s.*" (Expand Search), "fop petruiiv OR peteriiv OR petruov OR petruuuio OR peteruio OR peterdi 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 ((petriiv OR peteriiv) OR ((petrov OR (petruuio OR (peteruio OR peterdi))) OR petr)) o.s.*.