Perhaps you should try some spelling variations:
petroiiv » petrov (Expand Search), peteroiiv (Expand Search), petrioiiv (Expand Search), petrooiiv (Expand Search)
peteroiv » petrov (Expand Search)
petriouiv » peteriouiv (Expand Search), petriiouiv (Expand Search), petroiouiv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petriou » peteriou (Expand Search), petriiou (Expand Search), petroiou (Expand Search)
petr » peter (Expand Search), petri (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 (((petroiiv OR (peteroiv OR peterdi)) OR petriouiv) OR ((petru OR petriou) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petroiiv OR (peteroiv OR peterdi)) OR petriouiv) OR ((petru OR petriou) OR petr)) o.s.*".