Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
nang ma » tang ma, sang ma, nang cao
hieu vi » hieu voi, hieu va, hieu ve
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa
pham » phan

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