Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petriiuov (Expand Search), petroiuov (Expand Search)
petriiuov » peteriiuov (Expand Search), petriiiuov (Expand Search), petroiiuov (Expand Search)
petrv » peterv (Expand Search), petriv (Expand Search), petrov (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petrio » peterio (Expand Search), petriio (Expand Search), petroio (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 petriiuov) OR peteruv) OR petrv) OR ((petru OR petrio) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petriuov OR petriiuov) OR peteruv) OR petrv) OR ((petru OR petrio) OR petr)) o.s.*".