Perhaps you should try some spelling variations:
petru » pentru (Expand Search), peteru (Expand Search), petrou (Expand Search), peru (Expand Search)
petruiuv » pentruiuv (Expand Search), peteruiuv (Expand Search), petrouiuv (Expand Search), peruiuv (Expand Search)
petruiuiuo » pentruiuiuo (Expand Search), peteruiuiuo (Expand Search), petrouiuiuo (Expand Search), peruiuiuo (Expand Search)
petriuiuo » peteriuiuo (Expand Search), petroiuiuo (Expand Search), periuiuo (Expand Search)
petr » peter (Expand Search), petro (Expand Search), per (Expand Search)
petri » peteri (Expand Search), petroi (Expand Search), peri (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 ((peroov OR (petru OR petruiuv)) OR ((petriuiuo OR petruiuiuo) OR (petr OR petri))) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((peroov OR (petru OR petruiuv)) OR ((petriuiuo OR petruiuiuo) OR (petr OR petri))) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((peroov OR (petru OR petruiuv)) OR ((petriuiuo OR petruiuiuo) OR (petr OR petri))) o.s.*.