Perhaps you should try some spelling variations:
"wireless dry fbg sensors" » "wireless days fbg sensors", "wireless die fbg sensors", "wireless drive fbg sensors"
"wireless d2d eeg sensors" » "wireless ad eeg sensors", "wireless 2 eeg sensors", "wireless 12 eeg sensors"
"wireless ds eeg sensors" » "wireless days eeg sensors", "wireless _ eeg sensors", "wireless ad eeg sensors", "wireless des eeg sensors", "wireless das eeg sensors", "wireless dcs eeg 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 eeg sensors") OR ("wireless ds eeg sensors")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"wireless dry fbg sensors\") or (((\"wireless d2d eeg sensors\") OR (\"wireless ds eeg sensors\"))))".
• Removing quotes may allow a broader search: (( wireless dry fbg sensors ) or ((( wireless d2d eeg sensors ) OR ( wireless ds eeg sensors )))).
• Adding a wildcard symbol may retrieve word variants: (("wireless dry fbg sensors") or ((("wireless d2d eeg sensors") OR ("wireless ds eeg sensors"))))*.