Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thong dung » thong thuong
thong cong » trong cong, tong cong, thong thong
hanh dung » thanh dung, anh dung, hanh dong
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - hanh dung tai ((thong dung) or (thong cong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh dung tai ((thong dung) OR (thong cong)) dan than cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh dung tai ((thong dung) or (thong cong)) dan than cao*.