Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petriiuov (Expand Search), petroiuov (Expand Search)
peteruov » petrov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petriiou » peteriiou (Expand Search), petriiiou (Expand Search), petroiiou (Expand Search)
petroiiuuo » peteroiiuuo (Expand Search), petrioiiuuo (Expand Search), petrooiiuuo (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 ((petriuov OR peteruov) OR (((petru OR petriiou) OR petroiiuuo) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuov OR peteruov) OR (((petru OR petriiou) OR petroiiuuo) OR petr)) o.s.*".