Perhaps you should try some spelling variations:
petriv » peteriv (Expand Search), petriiv (Expand Search), petroiv (Expand Search)
petriuiv » peteriuiv (Expand Search), petriiuiv (Expand Search), petroiuiv (Expand Search)
petriiuiv » peteriiuiv (Expand Search), petriiiuiv (Expand Search), petroiiuiv (Expand Search)
petrou » peterou (Expand Search), petriou (Expand Search), petroou (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petriv OR (petriuiv OR petriiuiv)) OR ((petrou OR ((peru OR petru) OR per)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriv OR (petriuiv OR petriiuiv)) OR ((petrou OR ((peru OR petru) OR per)) OR petr)) o.s.*".