Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
than tai » thanh tai, toan tai, nhan tai
sang tao » hang tai
tao khoi » tao hoi, thao khoa, lao khoa
han tai » hang tai, nhan tai, van tai
thuc xa » thuc xay, tuc xa, thuc va
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
va nam » van nam, ha nam, va nay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) OR (sach ty)) sang tao khoi. lieu va nam thuc xa ((han tai) or (than tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) sang tao khoi. lieu va nam thuc xa ((han tai) OR (than tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) sang tao khoi. lieu va nam thuc xa ((han tai) or (than tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach ty)) sang tao khoi. lieu va nam thuc xa ((han tai) or (than tai)) cua tre*.