Perhaps you should try some spelling variations:
thuc dang » thuoc dang, thuc dan, thuc dung
dang hanh » dang thanh, ban hanh, dang van
ky tang » ky nang, ky dang, kho tang
van hoi » van hoc, van hoe, van loi
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
qua am » quan am, qua ap, cua am
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ky tang ((van hoi) or (van hoa)). hieu qua am thuc dang hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ky tang ((van hoi) OR (van hoa)). hieu qua am thuc dang hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu san ky tang ((van hoi) or (van hoa)). hieu qua am thuc dang hanh vi cua te*.