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

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 hai 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 hai 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 hai cua tre*.