Perhaps you should try some spelling variations:
sach thue » sach tham, cach thuc, bach hue
sach thu » sach tham, cach thuc, sach nha
cham luc » cham soc, nhan luc, cham cuu
hanh tri » thanh tri, hanh tai, hanh trinh
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va
cua tu » cua tuc, cua su, cua cu
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: te ((sach thu) or (((sach thue) OR (sach thieu)))) nang x hoi. hieu va cham luc va hanh tri cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach thu) OR (((sach thue) OR (sach thieu)))) nang x hoi. hieu va cham luc va hanh tri cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach thu) or (((sach thue) OR (sach thieu)))) nang x hoi. hieu va cham luc va hanh tri cua tu".
• Adding a wildcard symbol may retrieve word variants: te ((sach thu) or (((sach thue) OR (sach thieu)))) nang x hoi. hieu va cham luc va hanh tri cua tu*.