Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
hanh dao » lanh dao, thanh dat, thanh dam
ve cham » va cham, ve chat, vu cham
dao cua » dai cua, day cua, dan cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
ve cam » ve cac, va cam, ve cai
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, xa hoi, ma hoa

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 dang ma hoi. hieu ((ve cam) or (ve cham)) xuc va hanh dao cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky dang ma hoi. hieu ((ve cam) OR (ve cham)) xuc va hanh dao cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky dang ma hoi. hieu ((ve cam) or (ve cham)) xuc va hanh dao cua tre*.