Perhaps you should try some spelling variations:
thuoc dac » thuoc dang, thuoc sach, thuc dan
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
vai cuu » vai cua
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
cuu tre » cua tre, cau tren, cau treo
mai hoi » mai khoi, dai hoi, lai hoi
ky dang » ky nang, ky danh
dac ky » cac ky, dan ky, sac ky
ma hoi » xa hoi, ma hoa, me hoi
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc dac ky dang ((ma hoi) or (mai hoi)). hieu ((ve cam) or (ve cham)) xuc van hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc dac ky dang ((ma hoi) OR (mai hoi)). hieu ((ve cam) OR (ve cham)) xuc van hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thuoc dac ky dang ((ma hoi) or (mai hoi)). hieu ((ve cam) or (ve cham)) xuc van hanh vai cuu tre*.