Perhaps you should try some spelling variations:
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)
petro » petero (Expand Search), petrio (Expand Search), petruo (Expand Search), petrov (Expand Search), petri (Expand Search), petru (Expand Search)
petroi » peteroi (Expand Search), petrioi (Expand Search), petruoi (Expand Search), petrovi (Expand Search), petrii (Expand Search), petrui (Expand Search), petri (Expand Search), petrov (Expand Search), petrow (Expand Search)
petrovi » peterovi (Expand Search), petriovi (Expand Search), petruovi (Expand Search), petrovvi (Expand Search), petrivi (Expand Search), petruvi (Expand Search), petrov (Expand Search), petrovici (Expand Search)
pero » per (Expand Search), pro (Expand Search)
peteri » peterdi (Expand Search), peter (Expand Search), petri (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 (((peruw OR (petr OR petro)) o) OR (((pero OR peteri) OR (petroi OR petrovi)) _)). s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peruw OR (petr OR petro)) o) OR (((pero OR peteri) OR (petroi OR petrovi)) _)). s.*".