Perhaps you should try some spelling variations:
petruuuiv » peteruuuiv (Expand Search), petriuuuiv (Expand Search), petruuuuiv (Expand Search)
petruiuuiv » peteruiuuiv (Expand Search), petriuiuuiv (Expand Search), petruuiuuiv (Expand Search)
petriou » peteriou (Expand Search), petriiou (Expand Search), petruiou (Expand Search)
petriuuiou » peteriuuiou (Expand Search), petriiuuiou (Expand Search), petruiuuiou (Expand Search)
petrio » peterio (Expand Search), petriio (Expand Search), petruio (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((petruuuiv OR petruiuuiv) OR (((petriou OR (petriou OR petriuuiou)) OR petrio) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruuuiv OR petruiuuiv) OR (((petriou OR (petriou OR petriuuiou)) OR petrio) OR petr)) o.s.*".