Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
mai khoi » mai khoa, tai khoa, cac khoi
chat xuc » chat huu, cam xuc, chao xu
danh sai » dung sai, danh bat, danh dau
cau tren » cu tren, dau tren, ca tren
sach ky » sac ky, sach y, sach ty
mai hoi » dai hoi, lai hoi, mai doi
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
va danh » va dinh, va dan, va hanh
sai cau » lai chau, mai chau, hai chau
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((mai hoi) or (mai khoi)). hieu ve chat xuc va danh sai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((mai hoi) OR (mai khoi)). hieu ve chat xuc va danh sai cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((mai hoi) or (mai khoi)). hieu ve chat xuc va danh sai cau tren*.