Perhaps you should try some spelling variations:
quang trong » quang truong, quang trung, quan trong
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
tranh tran » thanh tran, tranh toan, tranh trong
tranh tren » trinh tren, tran tren, tranh trong
trong tan » trong quan, trong cac, trong ca
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu tinh)) - canh ((tranh tran) or (tranh tren)) quang trong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu tinh)) - canh ((tranh tran) OR (tranh tren)) quang trong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu tinh)) - canh ((tranh tran) or (tranh tren)) quang trong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu tinh)) - canh ((tranh tran) or (tranh tren)) quang trong tan toan cao*.