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

Try widening your search to All Fields.

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 dry fbg sensors") OR ("wireless d2d fbg sensors"))) OR ("wireless dry eeg sensors")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"wireless dry fbg sensors\") OR (\"wireless d2d fbg sensors\"))) or (\"wireless dry eeg sensors\"))".
• Removing quotes may allow a broader search: (((( wireless dry fbg sensors ) OR ( wireless d2d fbg sensors ))) or ( wireless dry eeg sensors )).
• Adding a wildcard symbol may retrieve word variants: (((("wireless dry fbg sensors") OR ("wireless d2d fbg sensors"))) or ("wireless dry eeg sensors"))*.