Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh han » trinh quan
cua nhan » ca nhan, cua ngan, cua nha
cac toan » cac khoan, hach toan, cac thanh
toan cao » toan ban, toan tap
cua han » cua hang, cua phan, cua ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu tinh)) - trinh han ((cua han) OR (cua nhan)) trong cac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu tinh)) - trinh han ((cua han) OR (cua nhan)) trong cac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu tinh)) - trinh han ((cua han) OR (cua nhan)) trong cac toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu tinh)) - trinh han ((cua han) OR (cua nhan)) trong cac toan cao*.