Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
hanh dai » hanh tai, hanh dao, vanh dai
dang mat » dang vat, dang mau, dung mat
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
dang ma » dang mau, dang mam, tang ma
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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