Perhaps you should try some spelling variations:
thu sang » thu hang, thu san, thu bang
sang tao » hang tai
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
va danh » va dinh, va dan, va hanh
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
vi cua » vai cua
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu sang tao hoi. ((hieu ve) OR (hieu qua)) cam tuc va danh ((vi cua) OR (di cua)) vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu sang tao hoi. ((hieu ve) or (hieu qua)) cam tuc va danh ((vi cua) OR (di cua)) vat~".
• Adding a wildcard symbol may retrieve word variants: te sach thu sang tao hoi. ((hieu ve) or (hieu qua)) cam tuc va danh ((vi cua) OR (di cua)) vat*.