Perhaps you should try some spelling variations:
peteriiv » peterdi (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petroiiov (Expand Search)
petrouiiv » peterouiiv (Expand Search), petriouiiv (Expand Search), petroouiiv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petroiov (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 ((peteriiv OR petrouiiv) OR ((petru OR ((petriov OR petriiov) OR peterov)) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peteriiv OR petrouiiv) OR ((petru OR ((petriov OR petriiov) OR peterov)) OR petr)) o.s.*".