Perhaps you should try some spelling variations:
cham luc » nhan luc, cham cuu, chat lua
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
dau cua » dai cua, day cua, cau cua
cua cua » cua chua, ca cua, qua cua
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu ve ((cham luc) or (cham soc)) va dau cua cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ve ((cham luc) OR (cham soc)) va dau cua cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ve ((cham luc) or (cham soc)) va dau cua cua viet*.