Perhaps you should try some spelling variations:
information agents » information age, information access, information about
classic linear » classical linear, class linear, basic linear
elastic linear » plastic liner, basic linear
a dimensional » _ dimensional, 3 dimensional, n dimensional
2 dimensional » _ dimensional, 3 dimensional, two dimensional

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

• Performing a fuzzy search may retrieve terms with similar spellings: information agents ((a dimensional) OR (2 dimensional)) ((classic linear) or (elastic linear))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information agents ((a dimensional) OR (2 dimensional)) ((classic linear) OR (elastic linear)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "information agents ((a dimensional) OR (2 dimensional)) ((classic linear) or (elastic linear))".
• Adding a wildcard symbol may retrieve word variants: information agents ((a dimensional) OR (2 dimensional)) ((classic linear) or (elastic linear))*.