Perhaps you should try some spelling variations:
petriv » peteriv (Expand Search), petriiv (Expand Search), petruiv (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petriiiiov » peteriiiiov (Expand Search), petriiiiiov (Expand Search), petruiiiiov (Expand Search)
petruiiiiov » peteruiiiiov (Expand Search), petriuiiiiov (Expand Search), petruuiiiiov (Expand Search)
petrou » peterou (Expand Search), petriou (Expand Search), petruou (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 (((petriv OR petriv) OR (petriov OR (petriiiiov OR petruiiiiov))) OR (petrou OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriv OR petriv) OR (petriov OR (petriiiiov OR petruiiiiov))) OR (petrou OR petr)) o.s.*".