Perhaps you should try some spelling variations:
peteriov » petrov (Expand Search)
petriuv » peteriuv (Expand Search), petriiuv (Expand Search), petruiuv (Expand Search)
petruuiuiuv » peteruuiuiuv (Expand Search), petriuuiuiuv (Expand Search), petruuuiuiuv (Expand Search)
petriiuov » peteriiuov (Expand Search), petriiiuov (Expand Search), petruiiuov (Expand Search)
petriov » peteriov (Expand Search), petriiov (Expand Search), petruiov (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 ((petriuv OR petruuiuiuv) OR ((petero OR (petriiuov OR (petriov OR peteriov))) OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuv OR petruuiuiuv) OR ((petero OR (petriiuov OR (petriov OR peteriov))) OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriuv OR petruuiuiuv) OR ((petero OR (petriiuov OR (petriov OR peteriov))) OR petr)) o.s.*.