Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
co thuc » do thuc, co thua, mo thuc
hai cua » thai cua, dai cua, hoi cua
bai cua » ban cua, dai cua, bai ca
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
tu lang » cu lang, tu lanh, xu lang
va co » vo co

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 lang) or (tu lenh)) xa hoi. hieu va co thuc va thanh ((bai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu lang) OR (tu lenh)) xa hoi. hieu va co thuc va thanh ((bai cua) OR (hai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((tu lang) or (tu lenh)) xa hoi. hieu va co thuc va thanh ((bai cua) or (hai cua)) tre*.