Perhaps you should try some spelling variations:
"fop petroiv OR petriiv OR petru OR petruo OR petrov OR peterio OR petr OR per o.s.*" » "fop petroiv OR petriiv OR pentru OR pentruo OR petrov OR peterio OR petr OR per o.s.*" (Expand Search), "fop petroiv OR petriiv OR petri OR petrio OR petrov OR peterio OR petr OR per o.s.*" (Expand Search), "fop petroiv OR petriiv OR petru OR petro OR petrov OR peterio OR petr OR per o.s.*" (Expand Search), "fop petroiv OR petriiv OR petru OR petruo OR petro OR peterio OR petr OR per o.s.*" (Expand Search), "fop peteroiv OR peteriiv OR peteru OR peteruo OR peterov OR peterio OR peter OR per o.s.*" (Expand Search), "fop petrioiv OR petriiiv OR petriu OR petriuo OR petriov OR peterio OR petri OR per o.s.*" (Expand Search), "fop petrooiv OR petroiiv OR petrou OR petrouo OR petroov OR peterio OR petro 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 ((petroiv OR petriiv) OR ((((petru OR petruo) OR petrov) OR peterio) OR (petr OR per))) o.s.*.