Perhaps you should try some spelling variations:
"wireless days eeg sensors" » "wireless data eeg sensors", "wireless ad eeg sensors", "wireless days fbg sensors", "wireless days deep sensors"
"wireless atm eeg sensors" » "wireless ad eeg sensors", "wireless _ eeg sensors", "wireless atm fbg sensors"

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: "((\"wireless days eeg sensors\") OR (\"wireless atm eeg sensors\"))".
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• Adding a wildcard symbol may retrieve word variants: (("wireless days eeg sensors") OR ("wireless atm eeg sensors"))*.