Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thanh tung » thanh cong
tuan hoang » quan hoang, tran hoang, xuan hoang
tung tuan » trung tuan, hung tuan, quang tuan
nong san » dong san, nong dan, trong san
cong san » cong tac
than cau » toan cau, phan cau, than cap

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 (chieu xanh)) - thanh tung tuan hoang ((nong san) OR (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - thanh tung tuan hoang ((nong san) OR (cong san)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu xanh)) - thanh tung tuan hoang ((nong san) OR (cong san)) than cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu xanh)) - thanh tung tuan hoang ((nong san) OR (cong san)) than cau*.