Perhaps you should try some spelling variations:
chung cong » nhung cong, chong cong, phung cong
luan chung » luan chinh
hanh dung » thanh dung, anh dung, hanh dong
hoc tien » hoc tieng, hoc hien, hoc vien
tien anh » tieng anh, tien manh, dien anh
dan toan » van toan, dan than, manh toan
ha dong » hoat dong, van dong
van tan » van tuan, van ban, van tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien anh - ((hanh dung) or (ha dong)) luan chung cong ((dan toan) or (van tan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien anh - ((hanh dung) OR (ha dong)) luan chung cong ((dan toan) OR (van tan)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc tien anh - ((hanh dung) or (ha dong)) luan chung cong ((dan toan) or (van tan)) ban*.