Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
ban thanh » ban hanh, ban hang
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, song van
van quan » van ban
quan ban » quang ban, qua ban, quan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((ban thanh) or (ngan hang)) - hanh tranh va nhung cong van quan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((ban thanh) OR (ngan hang)) - hanh tranh va nhung cong van quan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((ban thanh) or (ngan hang)) - hanh tranh va nhung cong van quan ban*.