Perhaps you should try some spelling variations:
hiem nghe » hiem ngheo, nhiem nghe, hiem ngan
cao hoa » cao hoat, cao khoa, cau hoa
cua tre » cua te, cuu tre, cua triet
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
nam tu » nam thuc
ca don » cac don, ca dong, ca dan
vi cua » vai cua, di 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 sai ky nang cao hoa. hiem nghe ((nam tu) OR (nam thu)) ca don vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang cao hoa. hiem nghe ((nam tu) OR (nam thu)) ca don vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang cao hoa. hiem nghe ((nam tu) OR (nam thu)) ca don vi cua tre*.