Perhaps you should try some spelling variations:
peteruov » petrov (Expand Search)
petruoiv » petrov (Expand Search), pentruoiv (Expand Search), petrioiv (Expand Search)
petruiov » petrov (Expand Search), pentruiov (Expand Search), petriiov (Expand Search)
petruov » pentruov (Expand Search), petriov (Expand Search)
petruiv » pentruiv (Expand Search), petriiv (Expand Search)
petrui » pentrui (Expand Search), petrii (Expand Search)
petru » pentru (Expand Search), petri (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 ((((petruov OR peteruov) OR (petruoiv OR petruiv)) OR petruiov) OR (petrui OR petru)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petruov OR peteruov) OR (petruoiv OR petruiv)) OR petruiov) OR (petrui OR petru)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petruov OR peteruov) OR (petruoiv OR petruiv)) OR petruiov) OR (petrui OR petru)) o.s.*.