Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
ve pham » v pham, ve phan, ve phat
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
danh d » danh di, danh du, anh d
cua su » qua su
x hoi » xa hoi, o hoi, x ho

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 tu nang x hoi. hieu ((ve pham) or (vi pham)) duc ban danh d ((cua tre) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu nang x hoi. hieu ((ve pham) OR (vi pham)) duc ban danh d ((cua tre) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: tu sach tu nang x hoi. hieu ((ve pham) or (vi pham)) duc ban danh d ((cua tre) or (cua su))*.