Perhaps you should try some spelling variations:
cong tac » cong ty
te sach » toc sach
co thuc » do thuc, co thua, mo thuc
hai cua » thai cua, hoi cua, lai cua
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
nong xa » song xa, dong xa, nong va
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 ((nong xa) or (cong tac)) hoi. hieu va co thuc va hanh ((hai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nong xa) OR (cong tac)) hoi. hieu va co thuc va hanh ((hai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nong xa) or (cong tac)) hoi. hieu va co thuc va hanh ((hai cua) or (dai cua)) tre*.