Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
thanh lai » thanh hai, thanh lap, thanh loi
ban thanh » ban hanh, ban hang
sach ky » sac ky, sach y, sach ty
mua ban » cua ban, qua ban
nam mua » nam cua, nam qua, nam xua
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
hieu ve » hieu van
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may

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 ky ((nang ma) OR (sang ma)) hoi. ((hieu ve) or (hieu va)) nam mua ban thanh lai chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang ma) OR (sang ma)) hoi. ((hieu ve) OR (hieu va)) nam mua ban thanh lai chau triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang ma) OR (sang ma)) hoi. ((hieu ve) or (hieu va)) nam mua ban thanh lai chau triet*".