Perhaps you should try some spelling variations:
pero » petro (Expand Search), per (Expand Search), pro (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (Expand Search)
petroov » peteroov (Expand Search), petrooov (Expand Search), peroov (Expand Search), petrov (Expand Search)
petru » peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petriv » peteriv (Expand Search), petroiv (Expand Search), periv (Expand Search), petris (Expand Search), petrov (Expand Search)
petri » peteri (Expand Search), petroi (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 ((((pero OR petr) OR petroov) OR (petru OR pentru)) OR (petriv OR petri)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((pero OR petr) OR petroov) OR (petru OR pentru)) OR (petriv OR petri)) o.s.*".