Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
chieu sang » chieu sach, chieu xanh, hieu lang
manh tung » manh hung, thanh tung
thang cau » hang cau, thong cau, thanh chau
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van

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 sang - manh tung cua dang ((cong van) or (cong ngang)) thang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - manh tung cua dang ((cong van) OR (cong ngang)) thang cau*.