Perhaps you should try some spelling variations:
tang mai » tang ma, tang tai, lang mai
xanh dai » vanh dai, xanh di, xanh tai
ky tang » ky nang, ky dang, kho tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
va xanh » va danh, va hanh, va anh
cua tre » cua te, cuu tre, cua triet
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ve dat » de dat, va dat, ve dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky tang mai hoi. hieu ve dat (nuoc or duoc) va xanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang mai hoi. hieu ve dat (nuoc OR duoc) va xanh dai cua tre*.