Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
hanh lai » hanh lam, hanh tai, thanh lap
tan hanh » tan thanh, tang hanh, toan hanh
sach thu » sach thieu, sach tham, cach thuc
xuc tan » duc tan, xuc tac, xuc ban
cua tre » cuu tre, cua triet, dua tren
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ve cam » ve cham, ve cac, va cam
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thu) or (sach thue)) nang ma hoi. hieu ve cam xuc tan hanh lai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach thue)) nang ma hoi. hieu ve cam xuc tan hanh lai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) or (sach thue)) nang ma hoi. hieu ve cam xuc tan hanh lai ((cua tre) or (cua te))*.