Perhaps you should try some spelling variations:
thinh tai » chinh tai, trinh tai, thanh tai
thu sach » tu sach, thuat sach, thuoc sach
nam thuc » nam thuoc, am thuc, nam thu
hinh tai » chinh tai, hinh thai, hinh bai
thuc day » thuc dan, thuc vat
lieu ha » lieu nha, lieu va, liem ha
tai hoi » tai khoi, dai hoi, tai hai
ly hang » ly quang
ky hang » ky nang, ky dang, ty hang
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ky hang) or (ly hang)) tai hoi. lieu ha nam thuc day ((hinh tai) or (thinh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky hang) OR (ly hang)) tai hoi. lieu ha nam thuc day ((hinh tai) OR (thinh tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky hang) or (ly hang)) tai hoi. lieu ha nam thuc day ((hinh tai) or (thinh tai)) cua tre*.