Perhaps you should try some spelling variations:
khong phuong » hong phuong, thong phuong, thuong phuong
thanh trung » thanh tung
phuong tran » huong tran, phuong trinh, phuong thao
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
cua khong » hua khong, cua phuong, cua thuong
than cau » toan cau, phan cau, than cap

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 - thanh trung cua khong phuong tran ((than cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trung cua khong phuong tran ((than cau) OR (phan tu))*.