Perhaps you should try some spelling variations:
"wireless d2d fbg sensors" » "wireless ad fbg sensors", "wireless 2 fbg sensors", "wireless ds fbg sensors"
"wireless dry eeg sensors" » "wireless days eeg sensors", "wireless ds eeg sensors", "wireless die eeg sensors", "wireless dry eyes sensors"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("wireless d2d fbg sensors") OR ("wireless dry eeg sensors"))*.
• Removing quotes may allow a broader search: (( wireless d2d fbg sensors ) or ( wireless dry eeg sensors ))*.