Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap
ban qua » ban quan, ban sua, ban quy
ban cua » ban quan

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