Perhaps you should try some spelling variations:
sang tao » hang tai
sach ky » sac ky, sach y, sach ty
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
ve cai » va cai, ve tai, ve cau
xuc va » duc va, tuc va, luc va
vai cu » van cu
ve cac » va cac, vien cac

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 tao hoi. hieu ((ve cai) or (ve cac)) xuc va hanh ((vai cu) OR (vai cua)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ((ve cai) OR (ve cac)) xuc va hanh ((vai cu) OR (vai cua)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang tao hoi. hieu ((ve cai) or (ve cac)) xuc va hanh ((vai cu) OR (vai cua)) tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. hieu ((ve cai) or (ve cac)) xuc va hanh ((vai cu) OR (vai cua)) tren*.