Perhaps you should try some spelling variations:
communication cost » communication cross, communication case, communication control
tio2 dimensions » time dimensions, 2 dimensions, five dimensions
image spaces » image space, image stacks, image states
image bites » image bit, image united, image states
cost tio2 » cost time, cost tips, cost two

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication cost tio2 dimensions ((image bites) or (image spaces))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication cost tio2 dimensions ((image bites) OR (image spaces)).
• Adding a wildcard symbol may retrieve word variants: communication cost tio2 dimensions ((image bites) or (image spaces))*.