Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh hai » thanh phan, thanh hoa, thanh san
thu sach » tu sach, thuat sach, thu hoach
va thanh » gia thanh, ban thanh, va tinh
vu cham » va cham, vu kham, tu cham
hai cua » thai cua, dai cua, hoi cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 (thuoc sach)) ky nang x hoi. hieu ((va cac) or (vu cham)) duc va thanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) ky nang x hoi. hieu ((va cac) OR (vu cham)) duc va thanh hai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) ky nang x hoi. hieu ((va cac) or (vu cham)) duc va thanh hai cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuoc sach)) ky nang x hoi. hieu ((va cac) or (vu cham)) duc va thanh hai cua te*.