Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua viet » ca viet, hoa viet, cua vat
kho tang » cao tang
thu sach » tu sach, thuat sach, thu hoach
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
tu cach » tu cac
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: ((tu cach) or (((thu sach) or (thuoc sach)))) kho tang xa hoi. hieu va cam xuc va hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (((thu sach) OR (thuoc sach)))) kho tang xa hoi. hieu va cam xuc va hanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (((thu sach) or (thuoc sach)))) kho tang xa hoi. hieu va cam xuc va hanh vi cua viet*.