Perhaps you should try some spelling variations:
sach thai » sach tham, sac thai, sach tai
thai bang » thai trang, thai binh, tai ban
te sach » toc sach
danh du » danh dau, danh tu, dinh du
danh di » xanh di, danh dien, danh gia
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
bang xa » lang xa, bang va, mang xa
ve cai » va cai, ve tai, ve cau
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thai bang xa hoi. hieu ((ve cai) or (ve cac)) thuc va ((danh di) OR (danh du)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thai bang xa hoi. hieu ((ve cai) OR (ve cac)) thuc va ((danh di) OR (danh du)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thai bang xa hoi. hieu ((ve cai) or (ve cac)) thuc va ((danh di) OR (danh du)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach thai bang xa hoi. hieu ((ve cai) or (ve cac)) thuc va ((danh di) OR (danh du)) cua tre*.