Perhaps you should try some spelling variations:
thanh duong » thanh huong, thanh cuong, thanh vuong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hanh dung » thanh dung, anh dung, hanh dong
tran tap » toan tap, tran tan, tran tuan

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) or (thanh duong)) va ((nhung cong) OR (thong cong)) tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((hanh dung) OR (thanh duong)) va ((nhung cong) OR (thong cong)) tan tran tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((hanh dung) or (thanh duong)) va ((nhung cong) OR (thong cong)) tan tran tap".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((hanh dung) or (thanh duong)) va ((nhung cong) OR (thong cong)) tan tran tap*.