Perhaps you should try some spelling variations:
sach kha » sach nha, sach ha, sach tham
kha nang » phap nang, ky nang, ki nang
thanh le » thinh le, thanh ve, thanh liem
thanh de » hanh de, thanh ve, thanh do
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach kha nang ma hoi. hieu ve cam duc va ((thanh le) or (thanh de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach kha nang ma hoi. hieu ve cam duc va ((thanh le) OR (thanh de)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach kha nang ma hoi. hieu ve cam duc va ((thanh le) or (thanh de)) cua tre*.