Perhaps you should try some spelling variations:
thai son » thai den, thai do, thai hoc
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » hieu qua
va hanh » van hanh, va thanh, va danh
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac
son va » song va, son la, lon va
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (ve cac)) ky lang xa hoi. ((hieu va) or (lieu va)) thai son va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky lang xa hoi. ((hieu va) OR (lieu va)) thai son va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (ve cac)) ky lang xa hoi. ((hieu va) or (lieu va)) thai son va hanh vi cua te*.