Perhaps you should try some spelling variations:
cao hoat » cac hoat, co hoat, cao chat
cau chuc » cau chu, cau phuc, canh chuc
tu sach » thu sach, su sach, te sach
hieu ve » hieu van
hieu va » lieu va, hieu qua
chuc va » thuc va, thuc vat
va tinh » may tinh
tinh di » tinh doi, trinh di, tinh da
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de 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 sach y nang cao hoat. ((hieu ve) or (hieu va)) cau chuc va tinh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang cao hoat. ((hieu ve) OR (hieu va)) cau chuc va tinh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cao hoat. ((hieu ve) or (hieu va)) cau chuc va tinh di cua tre*.