Perhaps you should try some spelling variations:
hanh dung » thanh dung, anh dung, hanh dong
tong cong » cong cong, dung cong, dang cong
theo chu » theo chieu, cho chu, chao chu
chu hanh » chu thanh, chuc hanh, chu han
dung cua » dung luan, dung cho
vang van » dang van, tang van, lang van
van cau » van dau, van hau, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu hanh - hanh dung cua ((tong cong) or (trong cong)) vang van cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu hanh - hanh dung cua ((tong cong) OR (trong cong)) vang van cau.
• Adding a wildcard symbol may retrieve word variants: theo chu hanh - hanh dung cua ((tong cong) or (trong cong)) vang van cau*.