Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
hoc chieu » hoc thieu, ho chieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
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 tung) or (canh tranh)) cua thong cong thanh ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((thanh tung) OR (canh tranh)) cua thong cong thanh ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((thanh tung) or (canh tranh)) cua thong cong thanh ((toan cao) or (van ban))*.