Perhaps you should try some spelling variations:
petriv » petris (Expand Search), peteriv (Expand Search), periv (Expand Search)
petru » pentru (Expand Search), peteru (Expand Search), peru (Expand Search)
petruo » pentruo (Expand Search), peteruo (Expand Search), peruo (Expand Search)
petr » peter (Expand Search), per (Expand Search)
petrov » peterov (Expand Search), perov (Expand Search)
petro » petero (Expand Search), pero (Expand Search)
petri » peteri (Expand Search), peri (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 (petriv OR ((((petru OR petr) OR ((petrov OR perov) OR petro)) OR petruo) OR petri)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petriv OR ((((petru OR petr) OR ((petrov OR perov) OR petro)) OR petruo) OR petri)) o.s.*".