Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
ban thanh » ban hanh, ban hang
trinh va » trinh van, trinh vat, trinh ve
ban than » van thanh, ban hang, ban hanh

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 va nhung cong ((ban than) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh trinh va nhung cong ((ban than) OR (ban thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh trinh va nhung cong ((ban than) or (ban thanh)) cau*.