Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
hoc chieu » hoc thieu, ho chieu, hoc hien
cua than » cua thanh, cua nhan, cua han
cac toan » cac khoan, hach toan, cac thanh
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 - hanh trung ((cua than) or (ca nhan)) trong cac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trung ((cua than) OR (ca nhan)) trong cac toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trung ((cua than) or (ca nhan)) trong cac toan cau*.