Perhaps you should try some spelling variations:
linear interaction » nonlinear interaction, nonlinear interactions, linear interpolation
weak integration » work integration, weak interactions, check integration
wear interaction » ear interaction, weak interactions, bear interactions
near interaction » ear interaction, bear interactions, shear interaction
weak interaction » weak interactions

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: %((weak integration) OR (((((wear interaction) OR (((near interaction) OR (linear interaction))))) OR (weak interaction))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((weak integration) or (((((wear interaction) or (((near interaction) OR (linear interaction))))) or (weak interaction))))%22".
• Adding a wildcard symbol may retrieve word variants: %((weak integration) or (((((wear interaction) or (((near interaction) OR (linear interaction))))) or (weak interaction))))%22*.