Perhaps you should try some spelling variations:
khang cong » hang cong, thanh cong, dang cong
chieu xanh » chieu sach, chieu sang, chieu tinh
nhan dang » nhan dan, phan dang, tran dang
van khang » van khanh, van thanh, van quang
ho chieu » theo chieu, hoc thieu, doi chieu
dang van » hoang van, hang va
cong tap » cuong tap, cong tac, cong tan
doan cau » toan cau, doan dau, doan cap
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: ho chieu xanh - nhan dang van khang cong tap ((doan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - nhan dang van khang cong tap ((doan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - nhan dang van khang cong tap ((doan cau) or (toan cao))*.