Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tang » trung thang, trong tang, trung thanh
hoc chieu » hoc thieu, ho chieu, hoc hien
tang dung » tang duong, dang dung, tan dung
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
toan cau » 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 chieu xanh - thanh trung tang dung ((cong tap) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - thanh trung tang dung ((cong tap) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh trung tang dung ((cong tap) or (cong tac)) toan cau*.