Perhaps you should try some spelling variations:
chat thuc » thuat thuc, nhan thuc, chat thai
thu sach » tu sach, thuat sach, thuoc sach
hieu cao » chieu cao, hieu cac, kieu cao
danh dai » danh dau, danh di, danh sai
nang xa » nang x, lang xa, nang ma
hieu ca » hieu cac, hieu cua, hieu va
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. ((hieu cao) or (hieu ca)) chat thuc va danh dai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. ((hieu cao) OR (hieu ca)) chat thuc va danh dai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. ((hieu cao) or (hieu ca)) chat thuc va danh dai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. ((hieu cao) or (hieu ca)) chat thuc va danh dai ((cua tre) OR (cua te))*.