Perhaps you should try some spelling variations:
"fop petriuv OR petruv OR petru OR per OR petriov OR petroiov OR peri OR petr o.s.*" » "fop petriuv OR petruv OR petru OR per OR petriov OR petrov OR peri OR petr o.s.*" (Expand Search), "fop petriuv OR petruv OR petru OR per OR petriov OR petroiov OR petri OR petr o.s.*" (Expand Search), "fop peteriuv OR peteruv OR peteru OR per OR peteriov OR peteroiov OR peri OR peter o.s.*" (Expand Search), "fop petriiuv OR petriuv OR petriu OR per OR petriiov OR petrioiov OR peri OR petri o.s.*" (Expand Search), "fop petroiuv OR petrouv OR petrou OR per OR petroiov OR petrooiov OR peri 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 ((petriuv OR petruv) OR ((((petru OR per) OR (petriov OR petroiov)) OR peri) OR petr)) o.s.*.