Perhaps you should try some spelling variations:
thanh duong » thanh huong, thanh cuong, thanh vuong
chieu sang » chieu sach, chieu xanh, hieu lang
thanh dung » thanh tung, hanh dung, thanh dong
thanh hung » thanh huong, thanh tung, thanh trung
thong cong » trong cong, tong cong, thong thong
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cao » nha cao, nhan tao, nhan co

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 sang - ((((thanh dung) OR (thanh hung))) or (thanh duong)) va thong cong tac nhan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((((thanh dung) OR (thanh hung))) OR (thanh duong)) va thong cong tac nhan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((((thanh dung) OR (thanh hung))) or (thanh duong)) va thong cong tac nhan cao*".