Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh dung » thanh dung, anh dung, hanh dong
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
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: hoc ((thien danh) OR (((chieu xanh) OR (hieu lang)))) - hanh dung luan dong cong van van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (((chieu xanh) or (hieu lang)))) - hanh dung luan dong cong van van ban*.