Perhaps you should try some spelling variations:
petruv » petru (Expand Search), petrov (Expand Search), petriuv (Expand Search), petruuv (Expand Search), petrouv (Expand Search)
peterov » petrov (Expand Search)
petriuv » petriiuv (Expand Search), petruiuv (Expand Search), petroiuv (Expand Search)
petriiuov » petriiiuov (Expand Search), petruiiuov (Expand Search), petroiiuov (Expand Search)
petruuo » petriuuo (Expand Search), petruuuo (Expand Search), petrouuo (Expand Search)
petr » petri (Expand Search), petru (Expand Search), petro (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 (((petriuv OR petriiuov) OR petruv) OR ((petruuo OR peterov) OR (petr OR peter))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriuv OR petriiuov) OR petruv) OR ((petruuo OR peterov) OR (petr OR peter))) o.s.*".