Perhaps you should try some spelling variations:
"national sciences serious 1:, applied sciences" » "national science serious 1:, applied sciences", "rational sciences serious 1:, applied sciences", "rational science serious 1:, applied sciences", "national sciences second 1:, applied sciences", "national sciences section 1:, applied sciences", "national sciences serious _:, applied sciences", "national sciences serious 2:, applied sciences", "national sciences serious a:, applied sciences"
"nato science services 1:, applied sciences" » "nato science service 1:, applied sciences", "nato science overview 1:, applied sciences", "nato voice services 1:, applied sciences", "radio science services 1:, applied sciences", "national science services 1:, applied sciences", "nato science services 10:, applied sciences", "nato science services 12:, applied sciences", "nato science services 11:, applied sciences"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"national sciences serious 1:, applied sciences\") OR (\"nato science services 1:, applied sciences\"))".
• Removing quotes may allow a broader search: (( national sciences serious 1:, applied sciences ) OR ( nato science services 1:, applied sciences )).
• Adding a wildcard symbol may retrieve word variants: (("national sciences serious 1:, applied sciences") OR ("nato science services 1:, applied sciences"))*.