Perhaps you should try some spelling variations:
hang vai » hang va, hang tai, hang hai
ban hang » ngan hang
tu sach » thu sach, te sach, tu cach
vai cua » dai cua, hai cua, lai cua
su sach » so sach, vu sach
duc ban » duc tan, duc van, dua ban
ve cac » vien cac
cua te » cua tu
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: ((tu sach) or (su sach)) ky nang x hoi. hieu ((ve cac) or (va cac)) duc ban hang vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang x hoi. hieu ((ve cac) OR (va cac)) duc ban hang vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang x hoi. hieu ((ve cac) or (va cac)) duc ban hang vai cua te*.