Perhaps you should try some spelling variations:
petruuov » petrov (Expand Search), peteruuov (Expand Search), petriuuov (Expand Search), petruuuov (Expand Search)
peteriov » petrov (Expand Search)
peteruiv » peterdi (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (Expand Search)
petruuiov » peteruuiov (Expand Search), petriuuiov (Expand Search), petruuuiov (Expand Search)
petriiou » peteriiou (Expand Search), petriiiou (Expand Search), petruiiou (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 ((((petruuov OR (petriov OR peteriov)) OR petruuiov) OR peteruiv) OR (petriiou OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petruuov OR (petriov OR peteriov)) OR petruuiov) OR peteruiv) OR (petriiou OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petruuov OR (petriov OR peteriov)) OR petruuiov) OR peteruiv) OR (petriiou OR petr)) o.s.*.