Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
peru » per (Expand Search)
petroiov » petrov (Expand Search), peteroiov (Expand Search), petrooiov (Expand Search), peroiov (Expand Search)
petrv » peterv (Expand Search), petrov (Expand Search), perv (Expand Search)
petru » peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search), peri (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (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 ((peteriiv OR petrv) OR ((((petru OR petri) OR peru) OR (peterov OR petroiov)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriiv OR petrv) OR ((((petru OR petri) OR peru) OR (peterov OR petroiov)) OR petr)) o.s.*".