Perhaps you should try some spelling variations:
bach van » bach dan, cach van, bach dang
ban hanh » ban hang
phan cuc » phan duc, phan cac, pham cuc
hieu van » hieu va, thien van, lieu va
hanh ki » hanh vi, hanh ky, hanh kien
cuc ban » cua ban, cac ban, cuu ban
su tien » su kien, su hien, tu tieng
hieu ve » hieu va
long ha » dong ha, cong ha, dong hoa
ki su » ky su

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: vu bach van ((lang ha) OR (long ha)) hoi. ((hieu ve) OR (hieu van)) phan cuc ban hanh ki su tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach van ((lang ha) or (long ha)) hoi. ((hieu ve) OR (hieu van)) phan cuc ban hanh ki su tien~".
• Adding a wildcard symbol may retrieve word variants: vu bach van ((lang ha) or (long ha)) hoi. ((hieu ve) OR (hieu van)) phan cuc ban hanh ki su tien*.