Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
qua nhan » cua nhan, qua nhat, qua phan
nhan luc » nang luc
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va danh, ban hanh
cua tre » cua te, cuu tre, cua triet

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

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