Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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 - thanh trung cua thong ((cong tan) OR (cong san)) ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung cua thong ((cong tan) OR (cong san)) ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh trung cua thong ((cong tan) OR (cong san)) ((than cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung cua thong ((cong tan) OR (cong san)) ((than cau) or (phan cau))*.