Perhaps you should try some spelling variations:
peteruiv » peterdi (Expand Search)
petruuiv » peteruuiv (Expand Search), petriuuiv (Expand Search), petruuuiv (Expand Search)
petriuuiv » peteriuuiv (Expand Search), petriiuuiv (Expand Search), petruiuuiv (Expand Search)
petruio » peteruio (Expand Search), petriuio (Expand Search), petruuio (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (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 ((peteruiv OR (petruuiv OR petriuuiv)) OR ((petruio OR petrov) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteruiv OR (petruuiv OR petriuuiv)) OR ((petruio OR petrov) OR petr)) o.s.*".