Perhaps you should try some spelling variations:
petrov » petro (Expand Search), peterov (Expand Search), petriov (Expand Search), petroov (Expand Search)
petru » pentru (Expand Search), petri (Expand Search), peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
peteru » peter (Expand Search), peters (Expand Search)
peteruo » petero (Expand Search), peterso (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petroiov (Expand Search)
petriioi » peteriioi (Expand Search), petriiioi (Expand Search), petroiioi (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (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 petrov) OR (((petriioi OR (petru OR peteru)) OR peteruo) OR (petr OR per))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriov OR petrov) OR (((petriioi OR (petru OR peteru)) OR peteruo) OR (petr OR per))) o.s.*".