Perhaps you should try some spelling variations:
peterov » petrov (Expand Search)
petrv » petrov (Expand Search), petru (Expand Search), petro (Expand Search), peterv (Expand Search), petruv (Expand Search)
petriiuov » peteriiuov (Expand Search), petruiiuov (Expand Search), petroiiuov (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (Expand Search)
petroov » peteroov (Expand Search), petruoov (Expand Search), petrooov (Expand Search), petrov (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (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 (((petriiuov OR peterov) OR petrv) OR ((petr OR (peterou OR petroov)) OR petri)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriiuov OR peterov) OR petrv) OR ((petr OR (peterou OR petroov)) OR petri)) o.s.*".