Perhaps you should try some spelling variations:
nhanh hai » nhanh thai, thanh hai, nhanh ha
nam thuc » nam thuoc, am thuc, nam thu
va nhanh » va thanh, va hanh, va nhan
cua tre » cua te, cuu tre, cua triet
sang xa » song xa, sang ma, mang xa
hai cua » thai cua, dai cua, hoi cua
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, dam thuc
tu sac » tu sach, tu cac, tu san
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: tu sac ky ((sang xa) OR (lang xa)) hoi. hieu ve ((cam tuc) or (nam thuc)) va nhanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang xa) OR (lang xa)) hoi. hieu ve ((cam tuc) OR (nam thuc)) va nhanh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((sang xa) OR (lang xa)) hoi. hieu ve ((cam tuc) or (nam thuc)) va nhanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((sang xa) OR (lang xa)) hoi. hieu ve ((cam tuc) or (nam thuc)) va nhanh hai cua tre*.