Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petriiuov (Expand Search), petruiuov (Expand Search)
peteruiv » peterdi (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petruiuv (Expand Search)
petruuuiuv » peteruuuiuv (Expand Search), petriuuuiuv (Expand Search), petruuuuiuv (Expand Search)
petriuuuiuv » peteriuuuiuv (Expand Search), petriiuuuiuv (Expand Search), petruiuuuiuv (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 (((petriuov OR peteruiv) OR (petriuv OR (petruuuiuv OR petriuuuiuv))) OR petr) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriuov OR peteruiv) OR (petriuv OR (petruuuiuv OR petriuuuiuv))) OR petr) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriuov OR peteruiv) OR (petriuv OR (petruuuiuv OR petriuuuiuv))) OR petr) o.s.*.