Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc thien » hoc hien, hoc thieu, hoc thiet
tranh cua » doanh cua, manh cua
van tuan » van quan, van ban, anh tuan
tuan cao » toan cao, juan cao, quang cao

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 tranh cua ((nhung cong) or (thong cong)) van tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh tranh cua ((nhung cong) OR (thong cong)) van tuan cao*.