Perhaps you should try some spelling variations:
petroov » peteroov (Expand Search), petrioov (Expand Search), petruoov (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petruiuv (Expand Search)
petrioouv » peterioouv (Expand Search), petriioouv (Expand Search), petruioouv (Expand Search)
petriou » peteriou (Expand Search), petriiou (Expand Search), petruiou (Expand Search)
petroou » peteroou (Expand Search), petrioou (Expand Search), petruoou (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 ((petroov OR (petriuv OR petrioouv)) OR ((peteru OR (petriou OR petroou)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petroov OR (petriuv OR petrioouv)) OR ((peteru OR (petriou OR petroou)) OR petr)) o.s.*".