Perhaps you should try some spelling variations:
petrooiov » peterooiov (Expand Search), petruooiov (Expand Search), petroooiov (Expand Search)
petroiiov » peteroiiov (Expand Search), petruoiiov (Expand Search), petrooiiov (Expand Search)
petrov » peterov (Expand Search), petruov (Expand Search), petroov (Expand Search)
petroov » peteroov (Expand Search), petruoov (Expand Search), petrooov (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 ((petrooiov OR (petroiiov OR peteriiiov)) OR (((petrov OR petroov) OR petri) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petrooiov OR (petroiiov OR peteriiiov)) OR (((petrov OR petroov) OR petri) OR petr)) o.s.*".