Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
quang dung » quang trung, ung dung, cuong dung
hanh dong » ha dong
dung cong » dung trong
anh dong » anh huong, anh son
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
phan cac » nhan cach, phan dau, phan lap

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 sang)) - ((hanh dong) or (anh dong)) quang dung cong ban phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - ((hanh dong) OR (anh dong)) quang dung cong ban phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sang)) - ((hanh dong) or (anh dong)) quang dung cong ban phan cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sang)) - ((hanh dong) or (anh dong)) quang dung cong ban phan cac*.