Perhaps you should try some spelling variations:
petriov » petrov (Expand Search), petriv (Expand Search), petrisv (Expand Search), peteriov (Expand Search), petriiov (Expand Search), petroiov (Expand Search)
petruo » petro (Expand Search), peteruo (Expand Search), petriuo (Expand Search), petrouo (Expand Search), petrio (Expand Search)
petrio » petri (Expand Search), petris (Expand Search), petro (Expand Search), peterio (Expand Search), petriio (Expand Search), petroio (Expand Search)
petruuv » peteruuv (Expand Search), petriuuv (Expand Search), petrouuv (Expand Search), petriuv (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search), petri (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petroiu (Expand Search), petri (Expand Search), petris (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petriov OR petruuv) OR ((petruo OR petrio) OR (petr OR ((petru OR petriu) OR pentru)))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriov OR petruuv) OR ((petruo OR petrio) OR (petr OR ((petru OR petriu) OR pentru)))) o.s.*".