Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
mai khoi » mai khoa, cac khoi, dai khoa
tai khoa » da khoa, noi khoa
hieu van » hieu va, thien van, hieu ve
va thanh » gia thanh, ban thanh, va tinh
ky tang » ky nang, ky dang, kho tang
dao duc » giao duc, tao duoc
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky tang ((mai khoi) or (tai khoa)). ((hieu van) or (lieu va)) dao duc va thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky tang ((mai khoi) OR (tai khoa)). ((hieu van) OR (lieu va)) dao duc va thanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky tang ((mai khoi) or (tai khoa)). ((hieu van) or (lieu va)) dao duc va thanh vai cuu tre*.