Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
hang hang » nang hang, cang thang, hung thang
nang sang » nang song, nong san
nang cong » nang song, dang cong, bang cong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 - ((hang hang) or (nang sang)) chuc nang cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hang hang) OR (nang sang)) chuc nang cong van toan ban*.