Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petruiov » petrov (Expand Search), peteruiov (Expand Search), petriuiov (Expand Search), petrouiov (Expand Search)
petriuiov » peteriuiov (Expand Search), petriiuiov (Expand Search), petroiuiov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petroiov (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 ((peteruov OR ((peteriiov OR (petruiov OR petriuiov)) OR petriov)) OR (petru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteruov OR ((peteriiov OR (petruiov OR petriuiov)) OR petriov)) OR (petru OR petr)) o.s.*".