Perhaps you should try some spelling variations:
"fop petruv OR peteruv OR peteruv OR petroi OR peterui OR peterui OR petr o.s.*" » "fop petruv OR peteruv OR peteruv OR petroi OR peterdi OR peterdi OR petr o.s.*" (Expand Search), "fop peteruv OR peteruv OR peteruv OR peteroi OR peterui OR peterui OR peter o.s.*" (Expand Search), "fop petriuv OR peteruv OR peteruv OR petrioi OR peterui OR peterui OR petri o.s.*" (Expand Search), "fop petruuv OR peteruv OR peteruv OR petruoi OR peterui OR peterui 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 peteruv) OR peteruv) OR (((petroi OR peterui) OR peterui) OR petr)) o.s.*.