Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cham loc » cham soc, chon loc, cham o
vu sach » vu bach, su sach, vu khach
vai cua » dai cua, hai cua, lai cua
loc ban » lo ban, hoc ban, coc ban
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
xay hoi » tay hoi, cay phoi, gay thoi
ky dang » ky nang, ky danh
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky dang ((xay hoi) OR (xa hoi)). hieu ve cham loc ban thanh ((vi cua) or (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky dang ((xay hoi) OR (xa hoi)). hieu ve cham loc ban thanh ((vi cua) OR (vai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky dang ((xay hoi) OR (xa hoi)). hieu ve cham loc ban thanh ((vi cua) or (vai cua)) te*".