Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
thanh day » thanh dat, thanh tay, thanh dam
tang van » dang van, hoang van, trong van
thu sach » tu sach, thuat sach, thuoc sach
day cua » dai cua
te sach » toc sach
ky tang » ky nang, ky dang, kho tang
cam thu » nam thu, cac thu, ca thu
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (te sach)) ky tang van hoa. lieu va ((cam thu) or (ca tru)) vat thanh day cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky tang van hoa. lieu va ((cam thu) OR (ca tru)) vat thanh day cua te.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky tang van hoa. lieu va ((cam thu) or (ca tru)) vat thanh day cua te*.