Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, hien hanh
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
cong anh » cong danh, dong anh, hong anh
tuan ban » tuan bang, toan ban, luan ban

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: theo ((((hieu manh) OR (dieu hanh))) OR (chieu sach)) - hanh tang cua thong cong anh tuan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((hieu manh) OR (dieu hanh))) or (chieu sach)) - hanh tang cua thong cong anh tuan ban~".
• Adding a wildcard symbol may retrieve word variants: theo ((((hieu manh) OR (dieu hanh))) or (chieu sach)) - hanh tang cua thong cong anh tuan ban*.