Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
cua viet » ca viet, hoa viet, cua dieu
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
dau cua » dai cua, day cua, cau cua
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
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 y nang xa hoi. hieu ve cham luc va dau cua ((cua viet) OR (cua vat))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ve cham luc va dau cua ((cua viet) OR (cua vat))".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve cham luc va dau cua ((cua viet) OR (cua vat))*.