Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh trinh » canh tranh, hanh chinh
khong cong » thong cong, khong cang, chong cong
hoc thien » hoc hien, hoc thieu, hoc thiet
trinh cua » tinh cua, trinh luat, trinh quan
hong bang » dong bang, hang ban, hong hanh
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - hanh trinh cua ((khong cong) or (hong bang)) ((dan than) or (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh trinh cua ((khong cong) OR (hong bang)) ((dan than) OR (ban than)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh trinh cua ((khong cong) or (hong bang)) ((dan than) or (ban than)) ban*.