Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cau tren » cu tren, dau tren, ca tren
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
mai hoi » mai khoi, dai hoi, lai hoi
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
ky tang » ky nang, ky dang, kho tang
vai cau » va cau, van cau, vai cac
te sach » toc sach
ma hoi » xa hoi, ma hoa, me hoi
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky tang ((ma hoi) or (mai hoi)). hieu van cam tuc va thanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky tang ((ma hoi) OR (mai hoi)). hieu van cam tuc va thanh vai cau tren.
• Adding a wildcard symbol may retrieve word variants: te sach ky tang ((ma hoi) or (mai hoi)). hieu van cam tuc va thanh vai cau tren*.