Perhaps you should try some spelling variations:
thong dung » thong cong, thong thuong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, hanh dong, manh dung
tai thong » tai thuong, tai phong, tai trong
anh dung » anh dong, anh huong, sach dung
dung dan » dung dat, dung san, tung dan
dan toan » van toan, dan than, manh toan
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 dung) or (anh dung)) tai thong dung dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh dung) OR (anh dung)) tai thong dung dan toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hanh dung) or (anh dung)) tai thong dung dan toan cao*.