Perhaps you should try some spelling variations:
chieu sang » chieu xanh, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » hieu quang, nhieu tang, hieu van
tranh cua » doanh cua, manh cua
dong dan » dong danh, duong dan, dong san
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 sang) OR (hieu lang))) or (chieu sach)) - hanh tranh cua cong dong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu sang) OR (hieu lang))) OR (chieu sach)) - hanh tranh cua cong dong dan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((chieu sang) OR (hieu lang))) or (chieu sach)) - hanh tranh cua cong dong dan toan cao*".