Perhaps you should try some spelling variations:
quang trong » quang truong, quang trung, quan trong
thieu xanh » chieu xanh, hieu manh, thien anh
tranh tran » thanh tran, tranh toan, tranh tren
hoc thieu » toc thieu, hoc hien
dang toan » dan toan, dung toan, dang thanh
dang tran » dang thanh, quang tran, hoang tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - canh tranh tran quang trong ((dang toan) or (dang tran)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh tran quang trong ((dang toan) OR (dang tran)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh tran quang trong ((dang toan) or (dang tran)) cao*.