Perhaps you should try some spelling variations:
su sach » vu sach
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
va tinh » may tinh
cuu tre » cua tre, cau tren, cau treo
ve cho » ve co, ve che, de cho
cho xu » chao xu, choi xu, cho xa
va cuu » va cau, va chu, va huu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ky nang x hoi. hieu ve cho xu ((va tinh) or (van dich)) va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang x hoi. hieu ve cho xu ((va tinh) OR (van dich)) va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky nang x hoi. hieu ve cho xu ((va tinh) or (van dich)) va cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky nang x hoi. hieu ve cho xu ((va tinh) or (van dich)) va cuu tre*.