Perhaps you should try some spelling variations:
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
va cam » va cham, va cac, va cai
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
dan di » danh di, dan da, dan li
dan de » dan den, dang de, van de
va cao » va cac, va co, va dao

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 y nang ma hoi. hieu ((va cam) or (va cao)) thuc va ((dan di) or (dan de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. hieu ((va cam) OR (va cao)) thuc va ((dan di) OR (dan de)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. hieu ((va cam) or (va cao)) thuc va ((dan di) or (dan de)) cua tre*.