Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
chua trieu » cua triet, cau trieu, chua thiet
sach cay » sach cap, sach hay, sach nay
trong xa » trong xay, trong ca, trong xu
ban hang » ngan hang
hang sua » hang cua, hanh sua, nang suat
duc ban » duc tan, duc van, dua ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach cay trong xa hoi. hieu ((van lam) or (van nam)) duc ban hang sua chua trieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach cay trong xa hoi. hieu ((van lam) OR (van nam)) duc ban hang sua chua trieu.
• Adding a wildcard symbol may retrieve word variants: thuoc sach cay trong xa hoi. hieu ((van lam) or (van nam)) duc ban hang sua chua trieu*.