Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
va cham » va chat, va tham
nang ha » nang hai, nang han, nang hoa
sach ky » sac ky, sach y, sach ty
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang ha hoi. hieu va cham xuc ((van hanh) or (((va danh) OR (va dinh)))) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang ha hoi. hieu va cham xuc ((van hanh) OR (((va danh) OR (va dinh)))) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang ha hoi. hieu va cham xuc ((van hanh) or (((va danh) OR (va dinh)))) vi cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang ha hoi. hieu va cham xuc ((van hanh) or (((va danh) OR (va dinh)))) vi cua te*.