Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
hieu quang » thieu quang, hieu quan, hieu qua
chieu tinh » trieu tinh, lieu tinh, chau tinh
manh hung » anh huong
dung cong » dung trong
hung cua » huong cua, chung cua, khung cua
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
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: hoc ((((chieu xanh) or (hieu quang))) or (chieu tinh)) - manh hung cua dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (hieu quang))) OR (chieu tinh)) - manh hung cua dung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (hieu quang))) or (chieu tinh)) - manh hung cua dung cong dan toan cao*.