Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
cuong tap » luong tap, cong tac, luong tai
tong tap » tuong tac, trong tan, cong tac
doan cau » toan cau, doan dau, doan cap
tang va » trang va, tang van, thang va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) OR (chieu sach)) - hanh tang va nhung ((tong tap) or (cuong tap)) doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - hanh tang va nhung ((tong tap) OR (cuong tap)) doan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sach)) - hanh tang va nhung ((tong tap) or (cuong tap)) doan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sach)) - hanh tang va nhung ((tong tap) or (cuong tap)) doan cau*.