Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, cong tan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tung dan » dung dan, huong dan, trung dai
dan dung » van dung, tin dung, ap dung
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 - thanh tung dan dung cong thanh ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh tung dan dung cong thanh ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh tung dan dung cong thanh ((toan cau) or (toan tap))*.