Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
khong cong » thong cong, chong cong, khong con
khong cang » thong cong, hong bang, khong dung
hien hach » thien hach, hien hanh, hien nhanh
tranh cua » doanh cua, manh cua
dan than » dan chan, ban than, van than
ban hang » ngan 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 hien hach - hanh tranh cua ((khong cong) or (khong cang)) ((dan than) or (ban hang)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hach - hanh tranh cua ((khong cong) OR (khong cang)) ((dan than) OR (ban hang)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien hach - hanh tranh cua ((khong cong) or (khong cang)) ((dan than) or (ban hang)) ban*.