Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
cua triet » cua viet, su triet, va triet
so sach » so sanh, co sach, hoc sach
bo sach » co sach, hoc sach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
cac dac » cac dan, cac dai, cac bac
dac ban » cac ban, dac san, duc ban
hai cua » thai cua, dai cua, hoi cua
ve cac » va cac, vien cac

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) or (bo sach)) ky dang xa hoi. hieu ve cac dac ban thanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ky dang xa hoi. hieu ve cac dac ban thanh hai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (bo sach)) ky dang xa hoi. hieu ve cac dac ban thanh hai cua triet*.