Perhaps you should try some spelling variations:
chat thuc » thuat thuc, nhan thuc, chat thai
hieu cao » chieu cao, hieu cac, kieu cao
danh dai » danh dau, danh sai, vanh dai
thu sach » tu sach, thuat sach, thuoc sach
hieu ca » hieu cac, hieu cua, hieu va
thuc va » thuc vat, thuc dan, thuc day
nang xa » nang x, lang xa, nang ma
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
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: thu sach y nang xa hoi. ((hieu cao) or (hieu ca)) chat thuc va ((danh dai) OR (danh di)) cua tre~.
• 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) OR (danh di)) cua tre.
• 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) OR (danh di)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. ((hieu cao) or (hieu ca)) chat thuc va ((danh dai) OR (danh di)) cua tre*.