Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
dung phuong » dung thuong, bang phuong, dung chung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trong cao » truong cao, trong ca, trong cay
danh phan » doanh phan, danh nhan, danh phap
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: hoc ((chieu sang) or (chieu sach)) - hanh ((trong cao) OR (trong cac)) dung phuong danh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu sach)) - hanh ((trong cao) OR (trong cac)) dung phuong danh phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (chieu sach)) - hanh ((trong cao) OR (trong cac)) dung phuong danh phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu sach)) - hanh ((trong cao) OR (trong cac)) dung phuong danh phan cau*.