Perhaps you should try some spelling variations:
thuc va » thuc vat, thuc dan, thuc day
van hac » van hoc, van ha, van hai
sach ky » sac ky, sach ty, sach kem
van bao » van ban, van dao
cua tre » cua te, cuu tre, cua triet
va dao » ca dao
dao di » dao do, dao du, dao li
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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) or (sach y)) nang x hoi. hieu ((van bao) or (van hac)) thuc va dao di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach y)) nang x hoi. hieu ((van bao) OR (van hac)) thuc va dao di cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) or (sach y)) nang x hoi. hieu ((van bao) or (van hac)) thuc va dao di cua tre*.