Perhaps you should try some spelling variations:
chat thuc » thuat thuc, nhan thuc, chat thai
chieu cao » hieu cac, hieu ca, chieu day
thu sach » tu sach, thuat sach, thuoc sach
hieu cao » hieu cac, hieu ca, kieu cao
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
dau cua » day cua, cau cua, dan cua

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