Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
manh hung » anh huong
cua thong » cua thuong, cua khong, suat thong
cong lang » cong vang, cong luong, cong quang
cua tong » cua cong, cua dong, cua nong
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 - manh hung ((cua thong) OR (cua tong)) cong lang ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - manh hung ((cua thong) OR (cua tong)) cong lang ((than cau) OR (than cap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - manh hung ((cua thong) OR (cua tong)) cong lang ((than cau) or (than cap))*".