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

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 dry fbg sensors\") OR (\"wireless dry eeg sensors\"))*".
• Removing quotes may allow a broader search: (( wireless dry fbg sensors ) OR ( wireless dry eeg sensors ))*.