Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
thu ngan » tu ngan, tai ngan, vu ngan
dung cua » dung luan, dung cho
van quan » van ban
hoc thu » hoc thuc, hoc thuy, hoc tu

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 thu ngan - hanh dung cua nhung cong ((anh tuan) OR (van quan)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thu ngan - hanh dung cua nhung cong ((anh tuan) or (van quan)) ban*.