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 luc » nang luc
thanh do » thanh de, thanh pho, thanh hoa
nhan duc » nhan duoc, phan duc, than duc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
do cua » doi cua, co cua, de cua
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: ((doc sach) OR (nuoc sach)) ky nang xa hoi. hieu va ((nhan duc) or (nhan luc)) ban thanh do cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc sach) OR (nuoc sach)) ky nang xa hoi. hieu va ((nhan duc) OR (nhan luc)) 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 xa hoi. hieu va ((nhan duc) or (nhan luc)) ban thanh do cua te".
• Adding a wildcard symbol may retrieve word variants: ((doc sach) OR (nuoc sach)) ky nang xa hoi. hieu va ((nhan duc) or (nhan luc)) ban thanh do cua te*.