Perhaps you should try some spelling variations:
petriuv » peteriuv (Expand Search), petruiuv (Expand Search), petroiuv (Expand Search)
petriiiuv » peteriiiuv (Expand Search), petruiiiuv (Expand Search), petroiiiuv (Expand Search)
petriov » peteriov (Expand Search), petruiov (Expand Search), petroiov (Expand Search)
petriuiov » peteriuiov (Expand Search), petruiuiov (Expand Search), petroiuiov (Expand Search)
petriuiv » peteriuiv (Expand Search), petruiuiv (Expand Search), petroiuiv (Expand Search)
petri » peteri (Expand Search), petrui (Expand Search), petroi (Expand Search)
petr » peter (Expand Search), petru (Expand Search), petro (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 petriiiuv) OR (petriov OR petriuiov)) OR petriuiv) OR (petri OR petr)) o.s.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "fop ((((petriuv OR petriiiuv) OR (petriov OR petriuiov)) OR petriuiv) OR (petri OR petr)) o.s.".
• Adding a wildcard symbol may retrieve word variants: fop ((((petriuv OR petriiiuv) OR (petriov OR petriuiov)) OR petriuiv) OR (petri OR petr)) o.s.*.