Perhaps you should try some spelling variations:
petriuov » peteriuov (Expand Search), petriiuov (Expand Search), petruiuov (Expand Search)
petrov » peterov (Expand Search), petriov (Expand Search), petruov (Expand Search)
petrioov » peterioov (Expand Search), petriioov (Expand Search), petruioov (Expand Search)
petriiov » peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
petruou » peteruou (Expand Search), petriuou (Expand Search), petruuou (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 ((petriuov OR ((petrov OR petrioov) OR petriiov)) OR ((petruou OR peterio) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuov OR ((petrov OR petrioov) OR petriiov)) OR ((petruou OR peterio) OR petr)) o.s.*".