Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
cong khong » cong thong, cong thuong, trong khong
khong hanh » khong thanh, hong hanh, phong thanh
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
dat hieu » dao hieu, dat tieu, rat nhieu
hanh ca » hanh cac, hanh cat, hanh cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dat hieu) or (toc thieu)) ngan - hanh trinh luan dang cong khong hanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dat hieu) OR (toc thieu)) ngan - hanh trinh luan dang cong khong hanh ca*.