Perhaps you should try some spelling variations:
"multimodal communication / fast" » "multimedia communication / fast", "multimedia communications / fast"
"multicast communication / fast" » "multimedia communication / fast", "multimedia communications / fast"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"multicast communication / fast\") OR (\"multimodal communication / fast\"))".
• Removing quotes may allow a broader search: (( multicast communication / fast ) OR ( multimodal communication / fast )).
• Adding a wildcard symbol may retrieve word variants: (("multicast communication / fast") OR ("multimodal communication / fast"))*.