Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
va tham » van tham, va thanh, va thuat
va cham » va chat
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, dua tren
ha hoi » hoa hoi, ha noi, xa hoi
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sac ky lang ha hoi. hieu ((va tham) or (va cham)) xuc van hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky lang ha hoi. hieu ((va tham) OR (va cham)) xuc van hanh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky lang ha hoi. hieu ((va tham) or (va cham)) xuc van hanh vi ((cua tre) or (cua triet))*.