Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
vu khanh » vu thanh, van khanh, duy khanh
dang xay » dang van, van xay
vu sach » vu bach, su sach, vu khach
cam loc » cam lo
loc ban » lo ban, hoc ban, coc ban
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
ve cam » ve cham, ve cac, va cam
vi cua » vai cua
di cua » dai cua, doi cua, de 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) or (vu khanh)) ky dang xay hoi. hieu ve cam loc ban thanh ((vi cua) or (di cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khanh)) ky dang xay hoi. hieu ve cam loc ban thanh ((vi cua) OR (di cua)) te.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu khanh)) ky dang xay hoi. hieu ve cam loc ban thanh ((vi cua) or (di cua)) te*.