Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
ban benh » san benh, ban banh, can benh
hieu van » hieu va, thien van, lieu va
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
tu sach » su sach, te sach, tu cach
van cam » van nam, van lam, van cau
ba benh » va benh, bo benh, bach benh
cuu tre » cua tre, cau tren, cau treo
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: ((thu sach) OR (tu sach)) ky lang xa hoi. hieu van cam xuc ((ban benh) or (ba benh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky lang xa hoi. hieu van cam xuc ((ban benh) OR (ba benh)) di cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ky lang xa hoi. hieu van cam xuc ((ban benh) or (ba benh)) di cuu tre*".