Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
ve cham » va cham, ve chat, vu cham
van cua » vang cua, ban cua, dan cua
anh van » anh va, thanh van, doanh van
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
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
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 sai ky dang ((ma hoi) or (ma hoa)). hieu ((ve cam) or (ve cham)) duc van anh van 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 cam) OR (ve cham)) duc van anh van cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sai ky dang ((ma hoi) or (ma hoa)). hieu ((ve cam) or (ve cham)) duc van anh van cua tre*.