Perhaps you should try some spelling variations:
thuoc dang » thuoc dung, thuoc khang, thuc dan
dang hanh » dang thanh, ban hanh, dang van
ky dang » ky nang, ky danh
dang ma » dang mau, dang mam, dang mat
va san » va ban
le nam » ly nam, he nam, te nam
vi cua » vai cua, di cua
cua te » cua tu
san ky » sang ky, van ky, dan ky
va nam » van nam, ha nam, va nay
ma hoi » mai hoi, xa hoi, ma hoa
le na » le va, le ta, le ha

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

• If you are trying to use Boolean operators, they must be ALL CAPS: va san ky dang ma hoi. hieu ((va nam) OR (((le na) OR (le nam)))) thuoc dang hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "va san ky dang ma hoi. hieu ((va nam) or (((le na) OR (le nam)))) thuoc dang hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: va san ky dang ma hoi. hieu ((va nam) or (((le na) OR (le nam)))) thuoc dang hanh vi cua te*.