Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong danh » phuong anh, phuong dinh, phuong hanh
chieu sang » chieu sach, chieu xanh, hieu lang
phuong dan » phuong doan, huong dan, phuong lan
luan thuc » nhan thuc, toan thuc, tuan thu
ho chieu » theo chieu, hoc thieu, doi chieu
dan thuc » dan toc, am thuc
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: ho chieu sang - thanh trung ((luan thuc) OR (dan thuc)) ((phuong dan) or (phuong danh)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung ((luan thuc) OR (dan thuc)) ((phuong dan) OR (phuong danh)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh trung ((luan thuc) OR (dan thuc)) ((phuong dan) or (phuong danh)) than cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung ((luan thuc) OR (dan thuc)) ((phuong dan) or (phuong danh)) than cau*.