Perhaps you should try some spelling variations:
petrw » petrow (Expand Search), petra (Expand Search), petre (Expand Search), peterw (Expand Search), perw (Expand Search)
peterw » peter (Expand Search), peters (Expand Search)
petr » peter (Expand Search), per (Expand Search)
petro » petero (Expand Search), pero (Expand Search), petrov (Expand Search)
petri » peteri (Expand Search), peri (Expand Search)
petru » peteru (Expand Search), peru (Expand Search), pentru (Expand Search)
peterov » petrov (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 (((((petrw OR peterw) OR petr) OR petro) o) OR (((petri OR peterov) OR petru) _)). s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((((petrw OR peterw) OR petr) OR petro) o) OR (((petri OR peterov) OR petru) _)). s.".
• Adding a wildcard symbol may retrieve word variants: fop (((((petrw OR peterw) OR petr) OR petro) o) OR (((petri OR peterov) OR petru) _)). s.*.