Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
so sach » bo sach, co sach, hoc sach
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
so sanh » do sanh
su viet » so viet
ma hoi » mai hoi, xa hoi, ma hoa
vi su » va su, ve su, ki su

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

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