Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
ve cac » va cac, vien cac
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
vi cuu » vi luu, vinh cuu

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

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