Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh hang » thanh hoang, thanh thang, tranh hang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
hang hang » nang hang, cang thang, hung thang
cong tinh » cong trinh, cong vinh, long tinh
va thong » va thuong, va phuong, he thong
toan ban » van ban

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 - ((thanh hang) or (hang hang)) va thong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((thanh hang) OR (hang hang)) va thong cong tinh toan ban*.