Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
ban thanh » ban hanh, ban hang
doc sach » hoc sach, toc sach, dac sac
nhan duc » nhan duoc, nhan luc, phan duc
thanh do » thanh de, thanh pho, thanh hoa
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
duc ban » duc tan, duc van, dua ban
do cua » doi cua, co cua, de 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: ((doc sach) OR (nuoc sach)) ky nang x hoi. hieu va nhan duc ban thanh do cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc sach) OR (nuoc sach)) ky nang x hoi. hieu va nhan duc ban thanh do cua te".
• Adding a wildcard symbol may retrieve word variants: ((doc sach) OR (nuoc sach)) ky nang x hoi. hieu va nhan duc ban thanh do cua te*.