Perhaps you should try some spelling variations:
communications applications » communication applications, telecommunications applications, telecommunication applications
matrix multidimensional » metric multidimensional, metrics multidimensional, data multidimensional
applications matrix » applications maria, applications main, applications marine
code dspaces » code slices, coded space
space » dspace
dspaces » ddspaces

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

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