Perhaps you should try some spelling variations:
thanh loi » thanh hoa, thanh hai, thanh lap
va thanh » gia thanh, ban thanh, va tinh
nhan luc » nang luc
hieu va » lieu va, hieu qua
loi cua » loai cua, hoi cua, doi cua
va nhan » van nhan, ca nhan, va phan
su sach » so sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
vu sach » vu bach, vu khach
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((su sach) OR (vu sach))) or (te sach)) ky lang xa hoi. hieu va nhan luc va thanh loi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((su sach) OR (vu sach))) OR (te sach)) ky lang xa hoi. hieu va nhan luc va thanh loi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((su sach) OR (vu sach))) or (te sach)) ky lang xa hoi. hieu va nhan luc va thanh loi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((((su sach) OR (vu sach))) or (te sach)) ky lang xa hoi. hieu va nhan luc va thanh loi cua tre*.