Perhaps you should try some spelling variations:
peteroov » petrov (Expand Search)
petriooov » peteriooov (Expand Search), petriiooov (Expand Search), petroiooov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petroiov (Expand Search)
petrooooov » peterooooov (Expand Search), petriooooov (Expand Search), petroooooov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (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 (((petriooov OR (peteroov OR petriov)) OR petrooooov) OR ((petru OR peteru) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriooov OR (peteroov OR petriov)) OR petrooooov) OR ((petru OR peteru) OR petr)) o.s.*".