Perhaps you should try some spelling variations:
petriuov » petrov (Expand Search), peteriuov (Expand Search), petriiuov (Expand Search), petruiuov (Expand Search)
petroiov » petrov (Expand Search), peteroiov (Expand Search), petrioiov (Expand Search), petruoiov (Expand Search)
peteriov » petrov (Expand Search)
petriiv » peteriiv (Expand Search), petriiiv (Expand Search), petruiiv (Expand Search)
petriiiiov » peteriiiiov (Expand Search), petriiiiiov (Expand Search), petruiiiiov (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 ((petriuov OR (((petroiov OR peteriov) OR petriiv) OR petriiiiov)) OR (peteru OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((petriuov OR (((petroiov OR peteriov) OR petriiv) OR petriiiiov)) OR (peteru OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((petriuov OR (((petroiov OR peteriov) OR petriiv) OR petriiiiov)) OR (peteru OR petr)) o.s.*.