Perhaps you should try some spelling variations:
"fop petruv OR petriuiov OR peteriuiov OR peteriov OR petero OR petr o.s.*" » "fop petruv OR petriuiov OR peteriuiov OR petrov OR petero OR petr o.s.*" (Expand Search), "fop peteruv OR peteriuiov OR peteriuiov OR peteriov OR petero OR peter o.s.*" (Expand Search), "fop petriuv OR petriiuiov OR peteriuiov OR peteriov OR petero OR petri o.s.*" (Expand Search), "fop petruuv OR petruiuiov OR peteriuiov OR peteriov OR petero 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 ((petriuiov OR peteriuiov) OR peteriov)) OR (petero OR petr)) o.s.*.