Perhaps you should try some spelling variations:
communication allocation » communication application, communication association, communication radiolocation
theory multidimensional » methods multidimensional, towards multidimensional, ciphers multidimensional
allocation theory » location theory, education theory
dspaces » ddspaces
ddspaces » dddspaces
space » dspace

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication allocation theory multidimensional ((case (dspaces or ddspaces)) or (phase space))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication allocation theory multidimensional ((case (dspaces OR ddspaces)) OR (phase space)).
• Adding a wildcard symbol may retrieve word variants: communication allocation theory multidimensional ((case (dspaces or ddspaces)) or (phase space))*.