Perhaps you should try some spelling variations:
ban hang » ngan hang
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
van anh » van thanh, tuan anh, van minh
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ve cau » ke cau, va cau, ve cac
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: so sach ty nang x hoi. hieu ve cau luc ((((va hanh) or (ban hang))) or (van anh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang x hoi. hieu ve cau luc ((((va hanh) OR (ban hang))) OR (van anh)) vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang x hoi. hieu ve cau luc ((((va hanh) or (ban hang))) or (van anh)) vi cuu tre*.