Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
tinh hoang » minh hoang, dinh hoang, binh hoang
hoang van » hang va
trong dan » trong dang, trong san, trong tan
van dung » van dong, xay dung, tin dung
dan luan » doanh luan, dung luan, tang luan

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 tinh)) - tinh hoang van dung trong dan luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sang) OR (chieu tinh)) - tinh hoang van dung trong dan luan van".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sang) OR (chieu tinh)) - tinh hoang van dung trong dan luan van*.