Perhaps you should try some spelling variations:
thang tai » tang tai, thanh tai, thong tai
nam thuoc » nam thuc, nam thu, nha thuoc
tao khoi » tao hoi, thao khoa, lao khoa
hang tai » hang va, dung tai
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
nam tu » nam thu, nam thuc

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 sang tao khoi. lieu va ((nam tu) or (nam thuoc)) xa ((hang tai) or (thang tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao khoi. lieu va ((nam tu) OR (nam thuoc)) xa ((hang tai) OR (thang tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao khoi. lieu va ((nam tu) or (nam thuoc)) xa ((hang tai) or (thang tai)) cua tre*.