Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thuc day » thuc dan, thuc vat
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan
te sach » toc sach
dinh ba » dinh gia, dinh van, dinh lam
tu cach » tu cac
ve nam » he nam, va nam, le nam
ba cua » ban cua, bai cua, bao 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 cach) or (te sach)) ky nang xa hoi. hieu ve nam ((thuc va) OR (thuc day)) dinh ba cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (te sach)) ky nang xa hoi. hieu ve nam ((thuc va) OR (thuc day)) dinh ba cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (te sach)) ky nang xa hoi. hieu ve nam ((thuc va) OR (thuc day)) dinh ba cua viet".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) ky nang xa hoi. hieu ve nam ((thuc va) OR (thuc day)) dinh ba cua viet*.