Perhaps you should try some spelling variations:
dat nguoc » dat nuoc, dao nguoi, dat duoc
nguoc lai » nguoi lai, nguoi lao, nguoi la
lai nguoi » loai nguoi, lam nguoi, loi nguoi
tu hach » tu hanh, tu cach, tu sach
hoc tay » hoc tap, hoc may, hoc tai
toc tay » toc thai
tu dat » tu bat

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((tu hach) or (tu cac)) ((hoc tay) OR (toc tay)) nguoi ) or ( tu dat nguoc lai nguoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((tu hach) OR (tu cac)) ((hoc tay) OR (toc tay)) nguoi ) OR ( tu dat nguoc lai nguoi ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((tu hach) or (tu cac)) ((hoc tay) OR (toc tay)) nguoi ) or ( tu dat nguoc lai nguoi ))*".