Perhaps you should try some spelling variations:
dang hanh » dang thanh, ban hanh, dang van
thuc dang » thuoc dang, thuc dan, thuc dung
nang ma » tang ma, sang ma, nang cao
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa
va nam » van nam, ha nam, va nay
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 nang ma hoi. hieu ((va nam) or (ly nam)) thuc dang hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ky nang ma hoi. hieu ((va nam) OR (ly nam)) thuc dang hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu san ky nang ma hoi. hieu ((va nam) or (ly nam)) thuc dang hanh vi cua te*.