Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau
co hieu » cao hieu, doc hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co hieu) or (ho chieu)) qua - hanh trinh luan chung cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co hieu) OR (ho chieu)) qua - hanh trinh luan chung cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((co hieu) or (ho chieu)) qua - hanh trinh luan chung cong tan phan dau*.