Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
thac quang » thai quang, than quang, thau quang
cua nhung » va nhung
tac quang » tac quan, tai quang, tao quang
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan

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 xanh) or (chieu sach)) - anh tang cua nhung cong ((thac quang) OR (tac quang)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - anh tang cua nhung cong ((thac quang) OR (tac quang)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - anh tang cua nhung cong ((thac quang) OR (tac quang)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - anh tang cua nhung cong ((thac quang) OR (tac quang)) cao*.