Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu tuc » hieu thuc, hieu luc, hieu thuoc
cham luc » cham soc, nhan luc, cham cuu
xanh di » danh di, vanh dai, xanh tai
va xanh » va danh, va hanh, va anh
tu sach » thu sach, su sach, tu cach
hieu tu » chieu tu, hien tu, lieu tu
nang xa » nang x, lang xa, nang ma
te sach » toc sach
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de cua

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)) cam nang xa hoi. ((hieu tu) OR (hieu tuc)) cham luc va xanh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) cam nang xa hoi. ((hieu tu) OR (hieu tuc)) cham luc va xanh di cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) cam nang xa hoi. ((hieu tu) OR (hieu tuc)) cham luc va xanh di cua viet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) cam nang xa hoi. ((hieu tu) OR (hieu tuc)) cham luc va xanh di cua viet*.