Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
chieu sang » chieu sach, chieu xanh, nhieu tang
nhung cong » dung cong, thong cong, hang cong
hieu lang » nhieu tang, hieu van, biet lang
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((hieu lang) OR (hieu quang))) or (chieu sang)) - hanh dung cua nhung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((hieu lang) OR (hieu quang))) OR (chieu sang)) - hanh dung cua nhung cong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((hieu lang) OR (hieu quang))) or (chieu sang)) - hanh dung cua nhung cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((((hieu lang) OR (hieu quang))) or (chieu sang)) - hanh dung cua nhung cong dan toan ban*.