Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh hai » thanh phan, thanh hoa, thanh san
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
hai cua » thai cua, dai cua, hoi cua
ve cac » va cac, vien cac
cua te » cua tu
x hoi » xa hoi, o hoi, 5 hoi

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