Perhaps you should try some spelling variations:
brain using » brain during, brain aging, brand using
using knn » using ann, using kon, using k
using tan » using tax, using tag, using team
using ka » using a, using k, using kon
a brain » _ brain
hong ng » hong kong, hong jong, hong hong
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: done ((using ka) OR (using knn)) a brain using tan ((hong ng) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: done ((using ka) OR (using knn)) a brain using tan ((hong ng) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "done ((using ka) OR (using knn)) a brain using tan ((hong ng) or (dang hai)) ;*".