Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hoc sach » hoc sinh, hoc cac, hoc anh
dau thuc » dan thuc, dai thuc, dam thuc
dang xay » dang van, van xay
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va
xay hoi » xa hoi, tay hoi, cay phoi
vu dang » su dang, vu quang, cua dang
vi cua » vai cua, di cua
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (hoc sach)) vu dang xay hoi. ((hieu va) or (hieu qua)) dau thuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) vu dang xay hoi. ((hieu va) OR (hieu qua)) dau thuc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (hoc sach)) vu dang xay hoi. ((hieu va) or (hieu qua)) dau thuc va hanh vi cua te*.