Perhaps you should try some spelling variations:
tu sach » thu sach, te sach, tu cach
thi van » thi lan, thi hanh, thi nang
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
lam xuc » cam xuc, lam duoc
cuu tre » cua tre, cau tren, cau treo
xang xa » lang xa, mang xa, ang xa
su sach » so sach, vu sach
xuc va » duc va, tuc va, luc va
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ty xang xa hoi. ((thien van) OR (thi van)) lam xuc va hanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty xang xa hoi. ((thien van) OR (thi van)) lam xuc va hanh di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ty xang xa hoi. ((thien van) OR (thi van)) lam xuc va hanh di cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ty xang xa hoi. ((thien van) OR (thi van)) lam xuc va hanh di cuu tre*.