Perhaps you should try some spelling variations:
"fop petriov OR petriv OR peteru OR petrov OR petris OR peterio OR petr OR per o.s.*" » "fop petriov OR petri OR peteru OR petrov OR petris OR peterio OR petr OR per o.s.*" (Expand Search), "fop petriov OR petriv OR peter OR petrov OR petris OR peterio OR petr OR per o.s.*" (Expand Search), "fop petriov OR petriv OR petru OR petrov OR petris OR peterio OR petr OR per o.s.*" (Expand Search), "fop petriov OR petriv OR peters OR petrov OR petris OR peterio OR petr OR per o.s.*" (Expand Search), "fop petriov OR petriv OR peteru OR petro OR petris OR peterio OR petr OR per o.s.*" (Expand Search), "fop petriov OR petriv OR peteru OR petrov OR petri OR peterio OR petr OR per o.s.*" (Expand Search), "fop peteriov OR peteriv OR peteru OR peterov OR peteris OR peterio OR peter OR per o.s.*" (Expand Search), "fop petriiov OR petriiv OR peteru OR petriov OR petriis OR peterio OR petri OR per o.s.*" (Expand Search), "fop petruiov OR petruiv OR peteru OR petruov OR petruis OR peterio OR petru OR per 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 ((petriov OR petriv) OR (peteru OR ((petrov OR (petris OR peterio)) OR (petr OR per)))) o.s.*.