Perhaps you should try some spelling variations:
petruoiv » petrov (Expand Search), peteruoiv (Expand Search), petriuoiv (Expand Search), petruuoiv (Expand Search)
peteriov » petrov (Expand Search)
petroiuov » peteroiuov (Expand Search), petrioiuov (Expand Search), petruoiuov (Expand Search)
petriv » peteriv (Expand Search), petriiv (Expand Search), petruiv (Expand Search)
petrouoiv » peterouoiv (Expand Search), petriouoiv (Expand Search), petruouoiv (Expand Search)
petrui » peterui (Expand Search), petriui (Expand Search), petruui (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 (((petroiuov OR (petriv OR (petruoiv OR petrouoiv))) OR peteriov) OR (petrui OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petroiuov OR (petriv OR (petruoiv OR petrouoiv))) OR peteriov) OR (petrui OR petr)) o.s.*".