Perhaps you should try some spelling variations:
petriiiv » peteriiiv (Expand Search), petriiiiv (Expand Search), petroiiiv (Expand Search)
petruiiv » peteruiiv (Expand Search), petriuiiv (Expand Search), petrouiiv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petruov » peteruov (Expand Search), petriuov (Expand Search), petrouov (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petroiuv (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 ((petriiiv OR petruiiv) OR (((petru OR (peterov OR petruov)) OR petriuv) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriiiv OR petruiiv) OR (((petru OR (peterov OR petruov)) OR petriuv) OR petr)) o.s.*".