Perhaps you should try some spelling variations:
petriivw » peteriivw (Expand Search), petriiivw (Expand Search), petroiivw (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)
petriu » peteriu (Expand Search), petriiu (Expand Search), petroiu (Expand Search), petri (Expand Search), petris (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search), pentru (Expand Search), petri (Expand Search)
petroi » peteroi (Expand Search), petrioi (Expand Search), petrooi (Expand Search), petri (Expand Search), petro (Expand Search), petrov (Expand Search)
petriou » peteriou (Expand Search), petriiou (Expand Search), petroiou (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 ((petriivw o) OR (((petr OR peterov) OR ((petriu OR (petru OR petroi)) OR petriou)) _)). s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriivw o) OR (((petr OR peterov) OR ((petriu OR (petru OR petroi)) OR petriou)) _)). s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriivw o) OR (((petr OR peterov) OR ((petriu OR (petru OR petroi)) OR petriou)) _)). s.*.