Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
cua tre » cua te, cuu tre, cua triet
va danh » va dinh, va dan, va hanh
va xanh » va hanh, va anh, va banh
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
mai hoi » dai hoi, lai hoi, mai doi
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
vu sac » vu sach, vu san, va sac

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) OR (mai khoi)). hieu ve cam xuc ((va xanh) or (va danh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang ((mai hoi) OR (mai khoi)). hieu ve cam xuc ((va xanh) OR (va danh)) dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky tang ((mai hoi) OR (mai khoi)). hieu ve cam xuc ((va xanh) or (va danh)) dai cua tre*".