Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban hang » ngan hang
hang lai » hang tai, hang hai, hang loi
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
soc ban » hoc ban, coc ban, so ban
lai cau » lai chau, lai cam, loi cau
5 hoi » o hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty nang ((5 hoi) or (xa hoi)). hieu ve cham soc ban hang lai cau thi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang ((5 hoi) OR (xa hoi)). hieu ve cham soc ban hang lai cau thi.
• Adding a wildcard symbol may retrieve word variants: thuat sach ty nang ((5 hoi) or (xa hoi)). hieu ve cham soc ban hang lai cau thi*.