Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh va » thanh van, thanh ha, thanh ve
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cham tu » pham tu, cam tu, chai tu
hanh va » hang va, hanh vi
su tien » su kien, su hien, tu tieng
y nang » ky nang, ly nang, v nang
tu van » tu va

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 y nang xa hoi. hieu ve cham tu van ((thanh va) or (hanh va)) su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang xa hoi. hieu ve cham tu van ((thanh va) OR (hanh va)) su tien.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu ve cham tu van ((thanh va) or (hanh va)) su tien*.