Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
van anh » van thanh, tuan anh, van minh
vuc van » duc van, luc van, thuc van
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
sai ky » sac ky
ma hoi » mai hoi, xa hoi, me hoi
anh va » hanh va
va cua » va chua, via cua, ca cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sai ky dang ((ma hoi) or (ma hoa)). hieu ((ve cac) or (ve cham)) vuc van anh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sai ky dang ((ma hoi) OR (ma hoa)). hieu ((ve cac) OR (ve cham)) vuc van anh va cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sai ky dang ((ma hoi) or (ma hoa)). hieu ((ve cac) or (ve cham)) vuc van anh va cua tre*.