Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
hoc thieu » toc thieu, hoc hien
quan dung » quang dung, quan duong, quan dong
ho chieu » theo chieu, doi chieu, mot chieu
qua dung » quang dung, su dung, qua song
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - thanh tuong ((quan dung) OR (qua dung)) cong van van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) xanh - thanh tuong ((quan dung) OR (qua dung)) cong van van ban~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - thanh tuong ((quan dung) OR (qua dung)) cong van van ban*.