Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
dinh cuu » dinh chi
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va tinh » may tinh
luc va » duc va, tuc va, loc va
di cuu » di cau, di cua
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: ((tu cac) or (su sach)) ky nang x hoi. hieu va cham luc va tinh ((di cuu) OR (dinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (su sach)) ky nang x hoi. hieu va cham luc va tinh ((di cuu) OR (dinh cuu)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (su sach)) ky nang x hoi. hieu va cham luc va tinh ((di cuu) OR (dinh cuu)) tre*".