Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petriiov » petrov (Expand Search), peteriiov (Expand Search), petriiiov (Expand Search), petruiiov (Expand Search)
peterui » peterdi (Expand Search)
petruoiov » peteruoiov (Expand Search), petriuoiov (Expand Search), petruuoiov (Expand Search)
petruiouiv » peteruiouiv (Expand Search), petriuiouiv (Expand Search), petruuiouiv (Expand Search)
petr » peter (Expand Search), petri (Expand Search), petru (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 ((((petruoiov OR peteriov) OR petriiov) OR (peteriv OR petruiouiv)) OR (peterui OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petruoiov OR peteriov) OR petriiov) OR (peteriv OR petruiouiv)) OR (peterui OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petruoiov OR peteriov) OR petriiov) OR (peteriv OR petruiouiv)) OR (peterui OR petr)) o.s.*.