Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu xanh » chieu sach, chieu sang, chieu tinh
thuong cua » huong cua, thong cua, truong cua
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
chau tinh » cuu tinh, ha tinh, cua tinh
tap toan » tap doan, tap quan, bai toan
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: doi ((chieu xanh) or (chau tinh)) - thanh thuong cua ((nhung cong) OR (thong cong)) tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chau tinh)) - thanh thuong cua ((nhung cong) OR (thong cong)) tap toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chau tinh)) - thanh thuong cua ((nhung cong) OR (thong cong)) tap toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chau tinh)) - thanh thuong cua ((nhung cong) OR (thong cong)) tap toan cau*.