Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petruiov » petrov (Expand Search), peteruiov (Expand Search), petriuiov (Expand Search), petrouiov (Expand Search)
petrooouov » peterooouov (Expand Search), petriooouov (Expand Search), petroooouov (Expand Search)
petrouuiov » peterouuiov (Expand Search), petriouuiov (Expand Search), petroouuiov (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 ((((petrooouov OR peteruov) OR peterov) OR (petruiov OR petrouuiov)) OR (petru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petrooouov OR peteruov) OR peterov) OR (petruiov OR petrouuiov)) OR (petru OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petrooouov OR peteruov) OR peterov) OR (petruiov OR petrouuiov)) OR (petru OR petr)) o.s.*.