Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hoc sach » hoc sinh, hoc cac, hoc anh
danh di » danh du, xanh di, danh dien
va danh » va dinh, va dan, va hanh
hieu va » lieu va
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
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: ((thuoc sach) OR (hoc sach)) v nang xa hoi. ((hieu va) or (hieu qua)) cam xuc va danh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) v nang xa hoi. ((hieu va) OR (hieu qua)) cam xuc va danh di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) OR (hoc sach)) v nang xa hoi. ((hieu va) or (hieu qua)) cam xuc va danh di cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) OR (hoc sach)) v nang xa hoi. ((hieu va) or (hieu qua)) cam xuc va danh di cuu tre*.