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
thong dan » thong van, tuong dan, thong den
tang cua » mang cua, hang cua, tang luan
tong dan » tuong dan, trong dan, cong dan
toan cao » toan ban, toan tap
cua han » cua hang, cua nhan, cua phan

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 cua han ((tong dan) OR (thong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - hanh tang cua han ((tong dan) OR (thong dan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - hanh tang cua han ((tong dan) OR (thong dan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - hanh tang cua han ((tong dan) OR (thong dan)) toan cao*.