Perhaps you should try some spelling variations:
"nato psi series, series e: applied science" » "nano psi series, series e: applied science"
"nato psi series, series 11: applied science" » "nano psi series, series 11: applied science"
"nato i series, series e: applied science" » "nano i series, series e: applied science"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nato psi series, series e: applied science") OR ("nato psi series, series 11: applied science"))) OR ("nato i series, series e: applied science")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nato psi series, series e: applied science\") OR (\"nato psi series, series 11: applied science\"))) or (\"nato i series, series e: applied science\"))".
• Removing quotes may allow a broader search: (((( nato psi series, series e: applied science ) OR ( nato psi series, series 11: applied science ))) or ( nato i series, series e: applied science )).
• Adding a wildcard symbol may retrieve word variants: (((("nato psi series, series e: applied science") OR ("nato psi series, series 11: applied science"))) or ("nato i series, series e: applied science"))*.