Perhaps you should try some spelling variations:
petriv » petris (Expand Search), petrov (Expand Search), petruiv (Expand Search), petroiv (Expand Search), periv (Expand Search)
peteri » peterdi (Expand Search), peters (Expand Search)
peterio » peterdio (Expand Search), peterso (Expand Search)
petruuo » petruuuo (Expand Search), petrouuo (Expand Search), peruuo (Expand Search)
petruio » petruuio (Expand Search), petrouio (Expand Search), peruio (Expand Search)
petr » petru (Expand Search), petro (Expand Search), per (Expand Search)
petri » petrui (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 (petriv OR ((((peter OR petruuo) OR peteri) OR (petruio OR peterio)) OR (petr OR petri))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (petriv OR ((((peter OR petruuo) OR peteri) OR (petruio OR peterio)) OR (petr OR petri))) o.s.*".