Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
duy sang » duy van, duy can, duy anh
cau tren » cu tren, dau tren, ca tren
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
vi cau » va cau, ve cau, di cau

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 ((duy sang) or (ky nang)) mai hoi. hieu ve cham xuc ((va hanh) or (va danh)) vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((duy sang) OR (ky nang)) mai hoi. hieu ve cham xuc ((va hanh) OR (va danh)) vi cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ((duy sang) or (ky nang)) mai hoi. hieu ve cham xuc ((va hanh) or (va danh)) vi cau tren*.