Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
doi chieu » doc hieu, doi chi, ho chieu
huong va » thuong va, duong va, muong va
luong va » dung va
toan tap » toan ban

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 sang - manh ((huong va) or (luong va)) nhung cong trinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - manh ((huong va) OR (luong va)) nhung cong trinh toan tap.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - manh ((huong va) or (luong va)) nhung cong trinh toan tap*.