Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
thuc ban » thuoc ban, thuc dan, thu ban
tu sach » thu sach, su sach, te sach
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
vu sach » vu bach, su sach, vu khach
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua
va am » va lam

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) or (vu sach)) ty lang xa hoi. lieu ((va am) OR (va cam)) thuc ban danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) ty lang xa hoi. lieu ((va am) OR (va cam)) thuc ban danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (vu sach)) ty lang xa hoi. lieu ((va am) OR (va cam)) thuc ban danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ty lang xa hoi. lieu ((va am) OR (va cam)) thuc ban danh vi cua tre*.