Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
nuoc sach » nguoi sach, hoc sach, cuoc cach
tay lang » tai lang, tay tang, tay quang
bai thuc » bai thuoc, bao thuc, dai thuc
thuc ban » thuoc ban, thuc dan, thu ban
thanh ve » hanh ve, thanh va, thanh vien
dua tren » dung tren
hieu va » lieu va, hieu qua
y lang » o lang, _ lang, yen lang
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: nuoc sach ((y lang) OR (tay lang)) xa hoi. hieu va bai thuc ban thanh ve ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach ((y lang) OR (tay lang)) xa hoi. hieu va bai thuc ban thanh ve ((dua tren) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach ((y lang) OR (tay lang)) xa hoi. hieu va bai thuc ban thanh ve ((dua tren) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: nuoc sach ((y lang) OR (tay lang)) xa hoi. hieu va bai thuc ban thanh ve ((dua tren) or (cua te))*.