Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
hanh tai » thanh tai, hang tai, han tai
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
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 ty) OR (sach tu)) nang x hoi. hieu va cham luc va hanh tai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) nang x hoi. hieu va cham luc va hanh tai cua tu".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach tu)) nang x hoi. hieu va cham luc va hanh tai cua tu*.