Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu sang
sang trong » lang trong, mang trong, nang trong
tinh quan » tinh quang, trinh quan, tin quan
trong dan » trong dang, trong san, trong tan
quan lua » quan luan, quan cua, quang cua
lua sang » luc sang, bua sang, cua sang
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((nhieu tang) OR (chieu sach)) - tinh quan lua sang trong dan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((nhieu tang) OR (chieu sach)) - tinh quan lua sang trong dan than man".
• Adding a wildcard symbol may retrieve word variants: doc ((nhieu tang) OR (chieu sach)) - tinh quan lua sang trong dan than man*.