Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thuc day » thuc dan, thuc vat
hai cua » thai cua, dai cua, hoi cua
thuc va » thuc vat, thuc dan
cua tre » cua te, cuu tre, cua triet
sach tu » sach thu, cach tu, sach uu
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach thu, xach tay
va dao » ca 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 tu) OR (sach ty)) nang xa hoi. hieu va dao ((thuc va) or (thuc day)) thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (sach ty)) nang xa hoi. hieu va dao ((thuc va) OR (thuc day)) thanh hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) OR (sach ty)) nang xa hoi. hieu va dao ((thuc va) or (thuc day)) thanh hai cua tre*".