Perhaps you should try some spelling variations:
peterov » petrov (Expand Search)
petruv » petrov (Expand Search), pentruv (Expand Search), petriv (Expand Search)
peterv » peters (Expand Search)
petrou » petro (Expand Search), petrov (Expand Search), petrow (Expand Search)
pero » petro (Expand Search), per (Expand Search), pro (Expand Search)
peteri » peterdi (Expand Search), petri (Expand Search), peters (Expand Search)
petru » pentru (Expand Search), petri (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((peterov OR petruv) OR peterv) OR (((petrou OR pero) OR peteri) OR (petru OR peter))) o.s.~".
• Adding a wildcard symbol may retrieve word variants: fop (((peterov OR petruv) OR peterv) OR (((petrou OR pero) OR peteri) OR (petru OR peter))) o.s.*.