Perhaps you should try some spelling variations:
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petroiiov (Expand Search)
petruuuv » peteruuuv (Expand Search), petriuuuv (Expand Search), petrouuuv (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petrouov (Expand Search)
petruiuuov » peteruiuuov (Expand Search), petriuiuuov (Expand Search), petrouiuuov (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 (((petruuuv OR (petruov OR (petruiuuov OR peteruuov))) OR petriiov) OR (petru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruuuv OR (petruov OR (petruiuuov OR peteruuov))) OR petriiov) OR (petru OR petr)) o.s.*".