Perhaps you should try some spelling variations:
"nato iii series, series 1: applied sciences" » "nato ii series, series 1: applied sciences", "nato iii services, series 1: applied sciences", "nato iii queries, series 1: applied sciences", "nato iii series, series 2: applied sciences", "prato iii series, series 1: applied sciences", "stato iii series, series 1: applied sciences", "nato iii series, series 1: applied science"
"nato psi series, series 1: applied sciences" » "nato i series, series 1: applied sciences", "nato ii series, series 1: applied sciences", "nato asi series, series 1: applied sciences", "nato ari series, series 1: applied sciences", "nato psi series, series 2: applied sciences", "nato psi series, series 1: applied science"
"nato psi series, series 3: applied sciences" » "nato i series, series 3: applied sciences", "nato ii series, series 3: applied sciences", "nato asi series, series 3: applied sciences", "nato ari series, series 3: applied sciences", "nato psi series, series 3: 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 1: applied sciences") OR ("nato iii series, series 1: applied sciences"))) OR ("nato psi series, series 3: applied sciences")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nato psi series, series 1: applied sciences\") OR (\"nato iii series, series 1: applied sciences\"))) or (\"nato psi series, series 3: applied sciences\"))".
• Removing quotes may allow a broader search: (((( nato psi series, series 1: applied sciences ) OR ( nato iii series, series 1: applied sciences ))) or ( nato psi series, series 3: applied sciences )).
• Adding a wildcard symbol may retrieve word variants: (((("nato psi series, series 1: applied sciences") OR ("nato iii series, series 1: applied sciences"))) or ("nato psi series, series 3: applied sciences"))*.