Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
hanh vai » hanh vi, hanh va, hanh tai
co sach » bo sach, cuon sach, hoc sach
nang ma » tang ma, sang ma, nang cao
ve phan » va phan, ke phan, ve phat
chuc va » thuc va, thuc vat
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
v pham » vi pham, d pham
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: co sach thu nang ma hoi. hieu ((v pham) or (ve phan)) chuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach thu nang ma hoi. hieu ((v pham) OR (ve phan)) chuc va hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: co sach thu nang ma hoi. hieu ((v pham) or (ve phan)) chuc va hanh vai cua te*.