Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
su triet » su viet, su tien, ve triet
tu cach » tu cac
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va tinh » may tinh
tinh di » tinh doi, trinh di, tinh da
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho
di su » doi su, ki su, da su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) ky nang x hoi. hieu va cham luc va tinh di su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang x hoi. hieu va cham luc va tinh di su triet*.