Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien bach » vien bach, dien sach, mien bac
toc sach » hoc sach, doc sach, thuoc sach
nang mai » nang ma, nang tai, lang mai
bach loc » bach tuoc, bac hoc, mach lac
va thanh » gia thanh, ban thanh, va tinh
thanh de » hanh de, thanh ve, thanh do
hoc anh » hoc nganh, hoc nhanh, ngoc anh
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
loc va » hoc va, luc va
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc anh) or (toc sach)) ky nang mai hoi. thieu nien bach loc va thanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc anh) OR (toc sach)) ky nang mai hoi. thieu nien bach loc va thanh de cua tre.
• Adding a wildcard symbol may retrieve word variants: ((hoc anh) or (toc sach)) ky nang mai hoi. thieu nien bach loc va thanh de cua tre*.