Perhaps you should try some spelling variations:
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petrouv » peterouv (Expand Search), petriouv (Expand Search), petruouv (Expand Search)
petriuiiov » peteriuiiov (Expand Search), petriiuiiov (Expand Search), petruiuiiov (Expand Search)
petriiuiiov » peteriiuiiov (Expand Search), petriiiuiiov (Expand Search), petruiiuiiov (Expand Search)
petruiu » peteruiu (Expand Search), petriuiu (Expand Search), petruuiu (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 petrouv) OR (petriiov OR (petriuiiov OR petriiuiiov))) OR (petruiu OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriov OR petrouv) OR (petriiov OR (petriuiiov OR petriiuiiov))) OR (petruiu OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriov OR petrouv) OR (petriiov OR (petriuiiov OR petriiuiiov))) OR (petruiu OR petr)) o.s.*.