Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cac toc » cac toi, cac nuoc, cac thoi
va danh » va dinh, va dan, va hanh
dan cua » dan ca, ban cua, dai cua
te cac » tu cac, ve cac, de cac
te cao » te bao
cua te » cua tu

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: ((te cac) OR (te cao)) ky lang xa hoi. hieu va cac toc ((van dong) OR (va danh)) dan cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (te cao)) ky lang xa hoi. hieu va cac toc ((van dong) or (va danh)) dan cua te~".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (te cao)) ky lang xa hoi. hieu va cac toc ((van dong) or (va danh)) dan cua te*.