Perhaps you should try some spelling variations:
ban thanh » ban hanh
ban hang » ngan hang
so sach » so sanh, bo sach, co sach
ky dang » ky nang
ky danh » ky anh
ha hoi » hoa hoi, ha noi, xa hoi
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua
cua te » cua tu

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 ((ky dang) OR (ky danh)) ha hoi. lieu va cam xuc ((ban thanh) or (ban hang)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ky dang) OR (ky danh)) ha hoi. lieu va cam xuc ((ban thanh) OR (ban hang)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ky dang) OR (ky danh)) ha hoi. lieu va cam xuc ((ban thanh) or (ban hang)) di cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ((ky dang) OR (ky danh)) ha hoi. lieu va cam xuc ((ban thanh) or (ban hang)) di cua te*.