Perhaps you should try some spelling variations:
thuoc sach » hoc sach, thuat sach, thuoc sinh
nuoc sach » nguoi sach, hoc sach, cuoc cach
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
dan va » doan va, dan ca, ban va
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) OR (nuoc sach)) ky tang ma hoi. lieu va cac dan va hanh ((vi cua) or (vai cua)) vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (nuoc sach)) ky tang ma hoi. lieu va cac dan va hanh ((vi cua) OR (vai cua)) vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) OR (nuoc sach)) ky tang ma hoi. lieu va cac dan va hanh ((vi cua) or (vai cua)) vat".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) OR (nuoc sach)) ky tang ma hoi. lieu va cac dan va hanh ((vi cua) or (vai cua)) vat*.