Perhaps you should try some spelling variations:
petruv » peteruv (Expand Search), petruuv (Expand Search), petrouv (Expand Search)
petrouiuv » peterouiuv (Expand Search), petruouiuv (Expand Search), petroouiuv (Expand Search)
petrov » peterov (Expand Search), petruov (Expand Search), petroov (Expand Search)
petriuuov » peteriuuov (Expand Search), petruiuuov (Expand Search), petroiuuov (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 (((petruv OR petrouiuv) OR (peteruov OR (petrov OR petriuuov))) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruv OR petrouiuv) OR (peteruov OR (petrov OR petriuuov))) OR (petri OR petr)) o.s.*".