Perhaps you should try some spelling variations:
peteroov » petrov (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petruuoov » peteruuoov (Expand Search), petriuuoov (Expand Search), petruuuoov (Expand Search)
petriiuoov » peteriiuoov (Expand Search), petriiiuoov (Expand Search), petruiiuoov (Expand Search)
petriou » peteriou (Expand Search), petriiou (Expand Search), petruiou (Expand Search)
petriiou » peteriiou (Expand Search), petriiiou (Expand Search), petruiiou (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 ((petruov OR (peteroov OR (petruuoov OR petriiuoov))) OR ((petriou OR petriiou) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruov OR (peteroov OR (petruuoov OR petriiuoov))) OR ((petriou OR petriiou) OR petr)) o.s.*".