Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
thanh phan » thanh pho, thanh san, thanh toan
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
trung ha » trung hoc, trung tam, trung cap
phan tap » phan lap, han tap, pha 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 sang - manh ((trung cua) or (trung ha)) dang cong thanh phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - manh ((trung cua) OR (trung ha)) dang cong thanh phan tap*.