Perhaps you should try some spelling variations:
petruiov » petrov (Expand Search), pentruiov (Expand Search), petriiov (Expand Search)
petruuov » petrov (Expand Search), pentruuov (Expand Search), petriuov (Expand Search)
petruov » pentruov (Expand Search), petriov (Expand Search)
petruuiov » pentruuiov (Expand Search), petriuiov (Expand Search)
petruoiov » pentruoiov (Expand Search), petrioiov (Expand Search)
petrui » pentrui (Expand Search), petrii (Expand Search)
petru » pentru (Expand Search), petri (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 (((petruov OR ((petruiov OR petruuiov) OR petruoiov)) OR petruuov) OR (petrui OR petru)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruov OR ((petruiov OR petruuiov) OR petruoiov)) OR petruuov) OR (petrui OR petru)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petruov OR ((petruiov OR petruuiov) OR petruoiov)) OR petruuov) OR (petrui OR petru)) o.s.*.