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
hau loc » huu loc, phau hoc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac
va hau » van hau, va chau, vat hau
loc va » hoc va, luc va
vi cua » vai 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: ((te cac) or (ve cac)) ky lang xa hoi. hieu va hau loc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky lang xa hoi. hieu va hau loc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (ve cac)) ky lang xa hoi. hieu va hau loc va hanh vi cua tre*.