Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
quang tuan » quang thanh, quan luan, quang cua
trong dang » truong dang, trong dan, trong dong
tuan dung » tuan duong, tran dung, tan dung
thanh ban » thanh san, thanh van, thanh bac
than ban » toan ban, than man, nhuan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu sang) OR (chieu sach)) - tinh quang tuan dung trong dang ((than ban) or (thanh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu sang) OR (chieu sach)) - tinh quang tuan dung trong dang ((than ban) OR (thanh ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sang) OR (chieu sach)) - tinh quang tuan dung trong dang ((than ban) or (thanh ban))".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sang) OR (chieu sach)) - tinh quang tuan dung trong dang ((than ban) or (thanh ban))*.