Perhaps you should try some spelling variations:
petre » petru (Expand Search), petro (Expand Search), petra (Expand Search), petrue (Expand Search), petroe (Expand Search), pere (Expand Search)
petria » petris (Expand Search), petra (Expand Search), petruia (Expand Search), petroia (Expand Search), peria (Expand Search)
petr » petru (Expand Search), petro (Expand Search), per (Expand Search)
petriov » petruiov (Expand Search), petroiov (Expand Search), periov (Expand Search), petrov (Expand Search)
petrou » petruou (Expand Search), petroou (Expand Search), perou (Expand Search), petru (Expand Search), petro (Expand Search), petrov (Expand Search)
petri » petrui (Expand Search), petroi (Expand Search), peri (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 ((((petre OR petria) OR petr) OR petriov) OR ((petrou OR petri) OR peter)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petre OR petria) OR petr) OR petriov) OR ((petrou OR petri) OR peter)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petre OR petria) OR petr) OR petriov) OR ((petrou OR petri) OR peter)) o.s.*.