Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trinh toan » tinh toan, thanh toan, trinh han
hanh hang » thanh hang, hang hang, hanh han
cua thong » cua thuong, cua khong, cua tong
hang cua » mang cua, hang ca, huong cua
tin toan » tinh toan, nin toan, thien toan

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 sang)) - hanh hang cua thong thong ((tin toan) OR (trinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - hanh hang cua thong thong ((tin toan) OR (trinh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - hanh hang cua thong thong ((tin toan) OR (trinh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - hanh hang cua thong thong ((tin toan) OR (trinh toan)) cau*.