Perhaps you should try some spelling variations:
sang tao » hang tai
tao khoi » tao hoi, thao khoa, lao khoa
than tai » thanh tai, toan tai, nhan tai
thuc xay » thuc day, tuc xay, thuat xay
cua tre » cua te, cuu tre, cua triet
ky sang » ky nang, ky dang, ky tang
lieu ha » lieu nha, lieu va, liem ha
thuc xa » tuc xa, thuc va, thuc ha
han tai » hang tai, nhan tai, van tai
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 tao khoi. lieu ha nam ((thuc xa) OR (thuc xay)) ((han tai) or (than tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang tao khoi. lieu ha nam ((thuc xa) OR (thuc xay)) ((han tai) OR (than tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang tao khoi. lieu ha nam ((thuc xa) OR (thuc xay)) ((han tai) or (than tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang tao khoi. lieu ha nam ((thuc xa) OR (thuc xay)) ((han tai) or (than tai)) cua tre*.