Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trang » thanh trung, canh tranh, hanh trinh
hien xanh » hien hanh, chieu xanh, hien khanh
trang cua » tranh cua, tang cua, trung cua
tong cong » cong cong, dung cong, dang cong
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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 xanh) OR (hien nhanh)) - hanh trang cua ((tong cong) or (trong cong)) ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - hanh trang cua ((tong cong) OR (trong cong)) ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - hanh trang cua ((tong cong) or (trong cong)) ban than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - hanh trang cua ((tong cong) or (trong cong)) ban than cau*.