Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
lang van » dang van, tang van, hoang van
cau treo » cau theo, cau tren, cau triet
lang xa » lang ha, dang xay
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
vi cau » va cau, ve cau, di cau

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 ky ((lang xa) or (lang van)) hoi. ((hieu ve) or (hieu qua)) cam xuc va hanh vi cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky ((lang xa) OR (lang van)) hoi. ((hieu ve) OR (hieu qua)) cam xuc va hanh vi cau treo.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky ((lang xa) or (lang van)) hoi. ((hieu ve) or (hieu qua)) cam xuc va hanh vi cau treo*.