Perhaps you should try some spelling variations:
petriiuv » peteriiuv (Expand Search), petriiiuv (Expand Search), petruiiuv (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petruiiuov » peteruiiuov (Expand Search), petriuiiuov (Expand Search), petruuiiuov (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petrio » peterio (Expand Search), petriio (Expand Search), petruio (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((petriiuv OR (petruov OR petruiiuov)) OR (((petrov OR peteru) OR petrio) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriiuv OR (petruov OR petruiiuov)) OR (((petrov OR peteru) OR petrio) OR petr)) o.s.*".