Perhaps you should try some spelling variations:
hiem ngheo » giam ngheo, nhiem nghe
ngheo nam » nghe nam, nghiep nam, nghe lam
hanh hai » thanh hai, nhanh hai, hang hai
toc sach » hoc sach, doc sach, thuoc sach
thuc day » thuc dan, thuc vat
thuc va » thuc vat, thuc dan
su tien » su kien, su hien, tu tieng
lang ha » long ha
ha hoi » hoa hoi, ha noi, xa hoi
y lang » o lang, _ lang, tay lang
hai su » hai vu, lai su, hai so

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y lang ha hoi. hiem ngheo nam ((thuc va) OR (thuc day)) hanh hai su tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y lang ha hoi. hiem ngheo nam ((thuc va) or (thuc day)) hanh hai su tien~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y lang ha hoi. hiem ngheo nam ((thuc va) or (thuc day)) hanh hai su tien*.