Perhaps you should try some spelling variations:
dang xay » dang van, van xay
ban lanh » ban hanh, ban linh, ban anh
cao duc » dao duc, cao suc, giao duc
hai cua » thai cua, hoi cua, lai cua
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cac duc » cac du, cac dac, cac nuoc
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh

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 dang xay hoi. hieu va ((cac duc) or (cao duc)) ban lanh ((hai cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xay hoi. hieu va ((cac duc) OR (cao duc)) ban lanh ((hai cua) OR (dai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky dang xay hoi. hieu va ((cac duc) or (cao duc)) ban lanh ((hai cua) or (dai cua)) triet*.