Perhaps you should try some spelling variations:
petrouov » peterouov (Expand Search), petruouov (Expand Search), petroouov (Expand Search)
petroooov » peteroooov (Expand Search), petruoooov (Expand Search), petrooooov (Expand Search)
petrov » peterov (Expand Search), petruov (Expand Search), petroov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petruuiuo » peteruuiuo (Expand Search), petruuuiuo (Expand Search), petrouuiuo (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 ((petrouov OR (petroooov OR (petrov OR petrouov))) OR ((petri OR petruuiuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petrouov OR (petroooov OR (petrov OR petrouov))) OR ((petri OR petruuiuo) OR petr)) o.s.*".