Perhaps you should try some spelling variations:
quang trong » quang truong, quang trung, quang thong
thieu xanh » chieu xanh, hieu manh, thien anh
canh thanh » canh tranh, danh thanh, anh thanh
thanh tran » thanh trang, thanh toan, thanh tra
quan trong » gian trong
hoc thieu » toc thieu, hoc hien
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 thanh tran ((quang trong) or (quan trong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh thanh tran ((quang trong) OR (quan trong)) dan than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh thanh tran ((quang trong) or (quan trong)) dan than cao*.