Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
luan nhung » luan chung, luan hung, quan nhung
cong thanh » dong thanh, cong tan, truong thanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
toan tap » toan ban

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 xanh) or (chieu sach)) - hanh tang luan nhung ((cong thanh) OR (cong trinh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - hanh tang luan nhung ((cong thanh) OR (cong trinh)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - hanh tang luan nhung ((cong thanh) OR (cong trinh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - hanh tang luan nhung ((cong thanh) OR (cong trinh)) toan tap*.