Perhaps you should try some spelling variations:
cau thuc » cau truc, cuu thuc, can thuc
hieu cao » chieu cao, hieu cac, kieu cao
danh sai » dung sai, danh bat, danh dau
danh dai » danh dau, danh di, vanh dai
thuc va » thuc vat, thuc dan, thuc day
thu sac » thu sach, thu san, thu xac
hieu ca » hieu cac, hieu cua, hieu va
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky

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

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