Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
thuc ban » thuoc ban, thuc dan, thu ban
cac thuc » cach thuc, cac thu, can thuc
hieu van » hieu va, thien van, lieu va
so sach » so sanh, bo sach, co sach
van cac » van hac, van cau, van bac
lang xa » lang ha, dang xay, lang van
danh vi » hanh vi, dinh vi, danh di
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
vi cua » vai cua, di cua
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: so sach y ((lang xa) or (((nang ma) or (sang ma)))) hoi. hieu van cac thuc ban danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((lang xa) OR (((nang ma) OR (sang ma)))) hoi. hieu van cac thuc ban danh vi cua te.
• Adding a wildcard symbol may retrieve word variants: so sach y ((lang xa) or (((nang ma) or (sang ma)))) hoi. hieu van cac thuc ban danh vi cua te*.