Perhaps you should try some spelling variations:
bach thuoc » bach tuoc, cach thuc, ban thuoc
thuoc tac » thuoc tai, thuoc tan, thuoc dac
tac nguoi » toc nguoi, thuc nguoi, tich nguoi
tay nguoi » toc nguoi, dao nguoi
thuc tay » thuc day, thuc tap, thuc tai
te bach » te sach, thi bach
lu hanh » luu hanh, du hanh, ly hanh
tu anh » tu hanh, tu manh, thu anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te bach thuoc tac nguoi ) or ( ((tu anh) or (lu hanh)) thuc tay nguoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te bach thuoc tac nguoi ) OR ( ((tu anh) OR (lu hanh)) thuc tay nguoi )).
• Adding a wildcard symbol may retrieve word variants: (( te bach thuoc tac nguoi ) or ( ((tu anh) or (lu hanh)) thuc tay nguoi ))*.