Perhaps you should try some spelling variations:
communication collision » communication commission, communication cohesion, communication collections
based integration » based integrated, based intervention, based information
euclidean metrics » euclidean metric, euclidean geometries, euclidean motions
euclidean spaces » euclidean space
collision based » collocation based, collision system, collision cables

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: communication collision based integration ((euclidean spaces) OR (euclidean metrics))~.
• Adding a wildcard symbol may retrieve word variants: communication collision based integration ((euclidean spaces) or (euclidean metrics))*.