Perhaps you should try some spelling variations:
cua viet » ca viet, cua vat, cua dieu
cham luc » cham soc, nhan luc, cham cuu
tu sach » thu sach, su sach, tu cach
dau cua » dai cua, day cua, cau cua
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang xa » nang x, lang xa, nang ma
te sach » toc sach
luc va » duc va, tuc va, loc va
va dau » va dao
y nang » ky nang, ly nang, v nang

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) or (te sach)) y nang xa hoi. hieu vu cham luc va dau cua ((cua viet) OR (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang xa hoi. hieu vu cham luc va dau cua ((cua viet) OR (hoa viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) y nang xa hoi. hieu vu cham luc va dau cua ((cua viet) OR (hoa viet))*".