Perhaps you should try some spelling variations:
phuong dung » cuong dung, phuong hoang
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh luat » trinh luat, tranh luan, trinh luan
thong dung » thong cong, thong thuong
tranh chap » tranh cua, trinh chat
tap tranh » tap thanh, lap trinh, tap toan

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 xanh) or (chieu sach)) - canh tranh luat ((phuong dung) OR (thong dung)) tap tranh chap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - canh tranh luat ((phuong dung) OR (thong dung)) tap tranh chap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sach)) - canh tranh luat ((phuong dung) OR (thong dung)) tap tranh chap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - canh tranh luat ((phuong dung) OR (thong dung)) tap tranh chap*.