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
trinh tuan » trinh quan, trinh toan, trinh luan
hang ban » hang luan, hang va, hang tai
tuan tai » toan tai, quan tai, tan tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sach)) - hang ban va nhung cong trinh tuan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - hang ban va nhung cong trinh tuan tai*.