Perhaps you should try some spelling variations:
te sach » toc sach
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
xuc ban » cuc ban, quoc ban, xuat ban
duc ban » duc tan, duc van, dua ban
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
vi cuu » vi luu, vinh cuu
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: ((te sach) or (so sach)) ky nang x hoi. hieu ve cam ((xuc ban) OR (duc ban)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (so sach)) ky nang x hoi. hieu ve cam ((xuc ban) OR (duc ban)) hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (so sach)) ky nang x hoi. hieu ve cam ((xuc ban) OR (duc ban)) hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (so sach)) ky nang x hoi. hieu ve cam ((xuc ban) OR (duc ban)) hanh vi cuu tre*.