Perhaps you should try some spelling variations:
"fop peteruv OR petrouv OR perouv OR petrou OR petroi OR peteroi OR petr o.s.*" » "fop peteruv OR peterouv OR perouv OR peterou OR peteroi OR peteroi OR peter o.s.*" (Expand Search), "fop peteruv OR petriouv OR perouv OR petriou OR petrioi OR peteroi OR petri o.s.*" (Expand Search), "fop peteruv OR petruouv OR perouv OR petruou OR petruoi OR peteroi 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 ((peteruv OR (petrouv OR perouv)) OR ((petrou OR (petroi OR peteroi)) OR petr)) o.s.*.