Perhaps you should try some spelling variations:
petruv » peteruv (Expand Search), petriuv (Expand Search), petruuv (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petruiuv (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petruiu (Expand Search)
petrovu » peterovu (Expand Search), petriovu (Expand Search), petruovu (Expand Search)
petruo » peteruo (Expand Search), petriuo (Expand Search), petruuo (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 ((petruv OR petriuv) OR (((petriu OR petrovu) OR peteruo) OR ((petruo OR per) OR petr))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruv OR petriuv) OR (((petriu OR petrovu) OR peteruo) OR ((petruo OR per) OR petr))) o.s.*".