Perhaps you should try some spelling variations:
petrv » petra (Expand Search), petre (Expand Search), peterv (Expand Search), perv (Expand Search)
petro » petero (Expand Search), pero (Expand Search)
petr » peter (Expand Search), per (Expand Search)
petri » peteri (Expand Search), peri (Expand Search)
petru » peteru (Expand Search), peru (Expand Search), pentru (Expand Search)
petruv » peteruv (Expand Search), peruv (Expand Search), pentruv (Expand Search)
petrov » peterov (Expand Search), perov (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 (petrv OR ((((petro OR petr) OR petri) OR petru) OR (petruv OR (petrov OR petrv)))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petrv OR ((((petro OR petr) OR petri) OR petru) OR (petruv OR (petrov OR petrv)))) o.s.*".