Perhaps you should try some spelling variations:
thu bang » thu ban, thu hang, chu bang
sach thu » sach thue, sach thieu, sach tham
cuc ban » cua ban, cac ban, cuu ban
xanh di » vanh dai, xanh tai
danh di » danh du, danh dien, danh gia
tu sach » thu sach, su sach, te sach
cam cuc » cam xuc, cham cuu, pham cuc
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
danh d » danh du, anh d, danh o
bang x » nang x, bang _, bang 2
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 thu bang x hoi. hieu va cam cuc ban ((danh d) or (((danh di) OR (xanh di)))) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu bang x hoi. hieu va cam cuc ban ((danh d) OR (((danh di) OR (xanh di)))) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu bang x hoi. hieu va cam cuc ban ((danh d) or (((danh di) OR (xanh di)))) cua tre*".