Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petruiiov (Expand Search), petroiiov (Expand Search)
petruuuv » peteruuuv (Expand Search), petruuuuv (Expand Search), petrouuuv (Expand Search)
petruiuuov » peteruiuuov (Expand Search), petruuiuuov (Expand Search), petrouiuuov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (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 (((petruuuv OR (peteruov OR (petruiuuov OR peteruuov))) OR petriiov) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruuuv OR (peteruov OR (petruiuuov OR peteruuov))) OR petriiov) OR (petri OR petr)) o.s.*".