Perhaps you should try some spelling variations:
petruov » petrov (Expand Search), peteruov (Expand Search), petriuov (Expand Search), petrouov (Expand Search), pentruov (Expand Search), petriov (Expand Search)
peterov » petrov (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petro (Expand Search)
petrui » peterui (Expand Search), petriui (Expand Search), petroui (Expand Search), petri (Expand Search), pentrui (Expand Search), petrii (Expand Search)
petru » peteru (Expand Search), petriu (Expand Search), petrou (Expand Search), pentru (Expand Search), petri (Expand Search)
peteri » peterdi (Expand Search), peter (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 peterov) OR (petr OR (petrui OR petru))) OR (peteri OR (petrui OR petru))) _. s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop (((petruov OR peterov) OR (petr OR (petrui OR petru))) OR (peteri OR (petrui OR petru))) _. s.".
• Adding a wildcard symbol may retrieve word variants: fop (((petruov OR peterov) OR (petr OR (petrui OR petru))) OR (peteri OR (petrui OR petru))) _. s.*.