Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
nhung cong » dung cong, thong cong, hang cong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
manh tung » manh hung, thanh tung
tung cua » trung cua, tuong cua, dung cua
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 - manh tung cua ((nhung cong) or (dung phuong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - manh tung cua ((nhung cong) OR (dung phuong)) dan toan cao*.