Perhaps you should try some spelling variations:
petruiiv » peteruiiv (Expand Search), petriuiiv (Expand Search), petrouiiv (Expand Search)
petriiiuv » peteriiiuv (Expand Search), petriiiiuv (Expand Search), petroiiiuv (Expand Search)
petriiiiuv » peteriiiiuv (Expand Search), petriiiiiuv (Expand Search), petroiiiiuv (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search)
petriiio » peteriiio (Expand Search), petriiiio (Expand Search), petroiiio (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: fop ((petruiiv OR (petriiiuv OR petriiiiuv)) OR (((petru OR petriiio) OR petero) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petruiiv OR (petriiiuv OR petriiiiuv)) OR (((petru OR petriiio) OR petero) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petruiiv OR (petriiiuv OR petriiiiuv)) OR (((petru OR petriiio) OR petero) OR petr)) o.s.*.