Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
sach phu » sach thu, sach phat, sach phap
hieu van » hieu va, thien van, lieu va
lam thuc » lam thuoc, am thuc, nam thuc
danh bat » doanh bat, anh bai, dinh ba
lang xa » lang ha, dang xay, lang van
van lam » van nam
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
bat cua » ban cua, mat cua, bai cua
cua tre » cua te, cuu tre, cua triet

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 phu) OR (sach thue)) lang xa hoi. hieu van lam thuc va danh bat cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach phu) OR (sach thue)) lang xa hoi. hieu van lam thuc va danh bat cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach phu) OR (sach thue)) lang xa hoi. hieu van lam thuc va danh bat cua tre*.