Perhaps you should try some spelling variations:
su sach » so sach
te sach » toc sach
vu sach » vu bach, vu khach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc 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: ((((su sach) or (te sach))) or (vu sach)) ky lang xa hoi. hieu va cam xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((su sach) OR (te sach))) OR (vu sach)) ky lang xa hoi. hieu va cam xuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((((su sach) or (te sach))) or (vu sach)) ky lang xa hoi. hieu va cam xuc va hanh vi cua tre*.