Perhaps you should try some spelling variations:
tao khoi » thao khoa, lao khoa, tao boi
nhan tai » hang tai, van tai, toan tai
cua tre » cua te, cuu tre, cua triet
han tai » hang tai, van tai, toan tai
thuc xa » thuc xay, tuc xa, thuc va
lieu ha » lieu nha, lieu va, liem ha
ky sang » ky nang, ky dang, ky tang
tao hoi » tao boi, tay hoi, thao hoc
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san
ha am » hoa am, ha nam, ha lam

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) OR (tao hoi)). lieu ha am thuc xa ((han tai) or (nhan tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ((tao khoi) OR (tao hoi)). lieu ha am thuc xa ((han tai) OR (nhan tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang ((tao khoi) OR (tao hoi)). lieu ha am thuc xa ((han tai) or (nhan tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((tao khoi) OR (tao hoi)). lieu ha am thuc xa ((han tai) or (nhan tai)) cua tre*.