Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van chat » cao chat
tang xa » trang xa, tang ma, lang xa
van cau » van dau, van hau, toan cau
ky tang » ky nang, ky dang, kho tang
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky tang xa hoi. hieu ((van cau) or (van chat)) luc va danh di ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky tang xa hoi. hieu ((van cau) OR (van chat)) luc va danh di ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky tang xa hoi. hieu ((van cau) or (van chat)) luc va danh di ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: thu sach ky tang xa hoi. hieu ((van cau) or (van chat)) luc va danh di ((cua tre) OR (cuu tre))*.