Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
cua khong » hua khong, cua phuong, cua thuong
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
than cao » thai cao, than cap, than sao
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 - hanh tang cua khong cong tan ((than cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh tang cua khong cong tan ((than cao) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh tang cua khong cong tan ((than cao) or (toan cao))*.