Perhaps you should try some spelling variations:
bien bach » bien dich, dien sach, mien bac
thuoc va » thuc va, thuoc ma, thuong va
cua tre » cua te, cua triet, dua tren
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang xa hoi. thieu ((bien bach) OR (vien bach)) thuoc va hanh di ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. thieu ((bien bach) OR (vien bach)) thuoc va hanh di ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang xa hoi. thieu ((bien bach) OR (vien bach)) thuoc va hanh di ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. thieu ((bien bach) OR (vien bach)) thuoc va hanh di ((cua tre) or (cuu tre))*.