Perhaps you should try some spelling variations:
sang tao » hang tai
su sach » so sach, vu sach
va danh » va dinh, va dan, va hanh
ky sang » ky nang, ky dang, ky tang
tao hai » tao dai, tao tai, tai hai
sach ky » sac ky, sach y, sach ty
truc va » thuc va, thuc vat, trung va
de cua » le cua, te cua, dieu cua
vi cua » vai cua, di cua
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky sang tao hai. hieu ((ve cam) OR (ve cac)) truc va danh ((vi cua) or (de cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky sang tao hai. hieu ((ve cam) OR (ve cac)) truc va danh ((vi cua) OR (de cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky sang tao hai. hieu ((ve cam) OR (ve cac)) truc va danh ((vi cua) or (de cua)) te".
• Adding a wildcard symbol may retrieve word variants: su sach ky sang tao hai. hieu ((ve cam) OR (ve cac)) truc va danh ((vi cua) or (de cua)) te*.