Perhaps you should try some spelling variations:
hieu tieng » viet tieng, dien tieng, tiep tieng
hieu hien » bieu hien, dieu hien, chieu chien
cap nuoc » dat nuoc
nuoc van » nuoc va, nuoc san, luoc van
van hanh » van thanh, ban hanh, van anh
hanh tri » thanh tri, hanh tai, hanh trinh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
co hoi » co loi
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: su sach ky nang ((co hoi) or (co hoc)). ((hieu tieng) or (hieu hien)) cap nuoc van hanh tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((co hoi) OR (co hoc)). ((hieu tieng) OR (hieu hien)) cap nuoc van hanh tri cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((co hoi) or (co hoc)). ((hieu tieng) or (hieu hien)) cap nuoc van hanh tri cua te*.