Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
van hang » van khang, van hoang, van thang
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam
va hang » va nang, va lang, va hanh
ho hap » hoi nhap, hoc phap
ho ha » pho ha, o ha, ho ba

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: ((ho ha) OR (ho hap)) tinh - hanh trinh ((va hang) OR (van hang)) cong dan khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho ha) or (ho hap)) tinh - hanh trinh ((va hang) OR (van hang)) cong dan khan cap~".
• Adding a wildcard symbol may retrieve word variants: ((ho ha) or (ho hap)) tinh - hanh trinh ((va hang) OR (van hang)) cong dan khan cap*.