Perhaps you should try some spelling variations:
sach thuong » mach thuong, sach huong, anh thuong
thieu bien » thieu nien, tieu bieu, hien bien
bien sach » dien sach, kien sach, bien dich
thuong va » truong va, thong va, thuong mai
va thanh » gia thanh, ban thanh, va tinh
thanh de » hanh de, thanh ve, thanh do
dua tren » dung tren
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang xa hoi. thieu bien sach thuong va thanh de ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. thieu bien sach thuong va thanh de ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. thieu bien sach thuong va thanh de ((dua tren) or (cuu tre))*.