Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
ca thuong » cao thuong, cua thuong, va thuong
cong tinh » cong trinh, cong vinh, long tinh
canh dan » canh van, thanh dan, cac dan
sanh dan » sach danh, sinh danh, thanh dan
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 - ((canh dan) or (sanh dan)) ca thuong cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((canh dan) OR (sanh dan)) ca thuong cong tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((canh dan) or (sanh dan)) ca thuong cong tinh toan cao*.