Perhaps you should try some spelling variations:
petrov » petro (Expand Search), peterov (Expand Search), petroov (Expand Search)
petruiiuv » pentruiiuv (Expand Search), peteruiiuv (Expand Search), petrouiiuv (Expand Search)
petru » pentru (Expand Search), peteru (Expand Search), petrou (Expand Search)
petero » peter (Expand Search), peters (Expand Search), petro (Expand Search)
petrouv » peterouv (Expand Search), petroouv (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search)
petr » peter (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 (((petrouv OR petrov) OR petruiiuv) OR (((petri OR petru) OR petero) OR (petr OR per))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petrouv OR petrov) OR petruiiuv) OR (((petri OR petru) OR petero) OR (petr OR per))) o.s.*".