Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh xuan » tran xuan, tranh luan, thanh xuan
thong cong » trong cong, tong cong, phong chong
danh toan » manh toan, anh toan, dan toan
toan cao » toan ban, toan tap

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 nhanh) or (chieu xanh)) - canh tranh xuan ((thong cong) OR (thong thong)) danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (chieu xanh)) - canh tranh xuan ((thong cong) OR (thong thong)) danh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) or (chieu xanh)) - canh tranh xuan ((thong cong) OR (thong thong)) danh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (chieu xanh)) - canh tranh xuan ((thong cong) OR (thong thong)) danh toan cao*.