Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petriiuiv » peteriiuiv (Expand Search), petriiiuiv (Expand Search), petruiiuiv (Expand Search)
petruuiv » peteruuiv (Expand Search), petriuuiv (Expand Search), petruuuiv (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petruiu (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petruuov (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((petriov OR (peteriiv OR (petriiuiv OR petruuiv))) OR ((petriu OR petruov) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriov OR (peteriiv OR (petriiuiv OR petruuiv))) OR ((petriu OR petruov) OR petr)) o.s.*".