Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cau treo » cau theo, cau tren, cau triet
ky lang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
dan vai » dan va, dan tai, dan vat
cuu tre » cua tre, cau tren
ky anh » ky danh, ly anh, ty anh
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
ve cam » ve cham, ve cac, va cam

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) or (ky anh)) xa hoi. hieu ve cam xuc va dan vai ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((ky lang) OR (ky anh)) xa hoi. hieu ve cam xuc va dan vai ((cuu tre) OR (cau treo))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((ky lang) or (ky anh)) xa hoi. hieu ve cam xuc va dan vai ((cuu tre) OR (cau treo))*".