Perhaps you should try some spelling variations:
tuong tuong » tuong duong, trong tuong, duong truong
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thong » cong thuong, cong trong, dong thong
hanh dung » thanh dung, anh dung, hanh dong
ho chieu » theo chieu, hoc thieu, doi chieu
viet van » viet nam, viet anh, viet ha

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 xanh - hanh dung luan ((tuong tuong) OR (cong thong)) viet van ban~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh dung luan ((tuong tuong) or (cong thong)) viet van ban*.