Perhaps you should try some spelling variations:
anti series » anti caries, ni series, anticad series
asii series » basic series, ii series, iii series
anti siris » anti sars
asi series » psi series, basic series, capi series
nato asii » nato ari, nato air, nato ii
nato asi » nato arw
sciences » science

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 ((anti series) OR (anti siris)), series 11: applied sciences ) OR ((( nato asii series, series 11: applied sciences ) OR ( nato asi series, series 11: applied sciences )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( nato ((anti series) OR (anti siris)), series 11: applied sciences ) or ((( nato asii series, series 11: applied sciences ) or ( nato asi series, series 11: applied sciences ))))".
• Adding a wildcard symbol may retrieve word variants: (( nato ((anti series) OR (anti siris)), series 11: applied sciences ) or ((( nato asii series, series 11: applied sciences ) or ( nato asi series, series 11: applied sciences ))))*.