Perhaps you should try some spelling variations:
thuc dang » thuoc dang, thuc dan, thuc dung
dang hanh » dang thanh, ban hanh, dang van
ky lang » ky nang, ky dang, ky 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 lang ((van hoi) OR (van hoa)). hieu qua am thuc dang hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ky lang ((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 lang ((van hoi) OR (van hoa)). hieu qua am thuc dang hanh vi cua te*.