Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petruuv » peteruuv (Expand Search), petriuuv (Expand Search), petruuuv (Expand Search)
petriiuov » peteriiuov (Expand Search), petriiiuov (Expand Search), petruiiuov (Expand Search)
petriiuuo » peteriiuuo (Expand Search), petriiiuuo (Expand Search), petruiiuuo (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: fop (((((petriov OR petruuv) OR peteriiv) OR peteriiov) OR petriiuov) OR (petriiuuo OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((((petriov OR petruuv) OR peteriiv) OR peteriiov) OR petriiuov) OR (petriiuuo OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((((petriov OR petruuv) OR peteriiv) OR peteriiov) OR petriiuov) OR (petriiuuo OR petr)) o.s.*.