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
nhan dang » nhan dan, phan dang, tran dang
va thong » va thuong, va phuong, he thong
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu
dang va » dang van, dang vat, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((hieu manh) OR (dieu hanh))) or (chieu sach)) - nhan dang va thong cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((hieu manh) OR (dieu hanh))) OR (chieu sach)) - nhan dang va thong cong anh tuan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((((hieu manh) OR (dieu hanh))) or (chieu sach)) - nhan dang va thong cong anh tuan cau*".