Perhaps you should try some spelling variations:
khanh ky » hanh ky, thanh ky, khanh duy
khanh ly » khanh duy, thanh lay, hanh ky
dang xay » dang van, van xay
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cac luc » cau luc, coc luc, cac nuoc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
va cua » va chua, via cua, ca cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((khanh ky) OR (khanh ly)) dang xay hoi. hieu ve cac luc ((va hanh) or (va danh)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((khanh ky) OR (khanh ly)) dang xay hoi. hieu ve cac luc ((va hanh) OR (va danh)) va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((khanh ky) OR (khanh ly)) dang xay hoi. hieu ve cac luc ((va hanh) or (va danh)) va cua tre".
• Adding a wildcard symbol may retrieve word variants: vu ((khanh ky) OR (khanh ly)) dang xay hoi. hieu ve cac luc ((va hanh) or (va danh)) va cua tre*.