Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
va hanh » van hanh, va danh, ban hanh
ma hoi » mai hoi, xa hoi, ma hoa
vi dan » voi dan, va dan, ve dan
vi dai » si dai, li dai, vien dai

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

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