Perhaps you should try some spelling variations:
nhanh hai » nhanh thai, thanh hai, nhanh ha
va nhanh » va thanh, va hanh, va nhan
cuu tre » cua tre, cau tren, cau treo
hai cuu » hai cua, hai chu, hai cuc
cua duc » cua tuc, cua nuoc, cua quoc
qua cua » quan cua, quang cua, qua quan
sang ma » tang ma, nang ma, sang tao
sang xa » song xa, lang xa, mang xa
sang ky » sang kyo, dang ky, tang ky
san ky » van ky, dan ky, ban 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 ((san ky) or (sang ky)) ((sang xa) or (sang ma)) hoi. hieu qua cua duc va nhanh hai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (sang ky)) ((sang xa) OR (sang ma)) hoi. hieu qua cua duc va nhanh hai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (sang ky)) ((sang xa) or (sang ma)) hoi. hieu qua cua duc va nhanh hai cuu tre*.