Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
khong cong » thong cong, khong cang, chong cong
hien xanh » hien hanh, chieu xanh, hien khanh
manh hung » anh huong
cua khong » hua khong, cua phuong, cua thuong
cong vang » cong lang, cong quang, cong ngang
hung cua » huong cua, chung cua, khung cua
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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