Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
quan thong » quang thong, xuan thong, quang thang
quan trong » gian trong
hoc thieu » toc thieu, hoc hien
doanh ban » doanh bat, doanh van, doanh nhan
dan van » dang van, doan van, tan van
dao van » do van, dang van

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 - doanh ban ((quan thong) OR (quan trong)) thong ((dan van) or (dao van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - doanh ban ((quan thong) OR (quan trong)) thong ((dan van) OR (dao van)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - doanh ban ((quan thong) OR (quan trong)) thong ((dan van) or (dao van)) ban*".