Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
dai cuu » dai cua, dai huu
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa
va cao » va cac, va co, va dao

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 ((y nang) or (v nang)) ma hoi. hieu va cao duc va thanh dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (v nang)) ma hoi. hieu va cao duc va thanh dai cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (v nang)) ma hoi. hieu va cao duc va thanh dai cuu tre*.