Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petroiiov (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petroiuv (Expand Search)
petruiuiov » peteruiuiov (Expand Search), petriuiuiov (Expand Search), petrouiuiov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (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 (((petriuv OR peteruov) OR (petruiuiov OR petriiov)) OR (petru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petriuv OR peteruov) OR (petruiuiov OR petriiov)) OR (petru OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petriuv OR peteruov) OR (petruiuiov OR petriiov)) OR (petru OR petr)) o.s.*.