Perhaps you should try some spelling variations:
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"nato i series, series 11: applied sciences" » "nato i series, series 1: applied sciences", "nato i series, series 10: applied sciences", "nato i series, series 12: applied sciences", "nato im series, series 11: applied sciences", "nato ii series, series 11: applied sciences", "nato _ series, series 11: applied sciences"
"nato i serious, series 11: applied sciences" » "nato i serious, series 1: applied sciences", "nato i serious, series 10: applied sciences", "nato i serious, series 12: applied sciences", "nato _ serious, series 11: applied sciences", "nato a serious, series 11: applied sciences", "nato im serious, series 11: applied sciences", "nato ii serious, series 11: applied sciences"

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 basic series, series 11: applied science") OR ((("nato i series, series 11: applied sciences") OR ("nato i serious, series 11: applied sciences")))).
• Removing quotes may allow a broader search: (( nato basic series, series 11: applied science ) or ((( nato i series, series 11: applied sciences ) or ( nato i serious, series 11: applied sciences )))).
• Adding a wildcard symbol may retrieve word variants: (("nato basic series, series 11: applied science") or ((("nato i series, series 11: applied sciences") or ("nato i serious, series 11: applied sciences"))))*.