Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
va thong » va thuong, va phuong, he thong
cong san » cong tac
san chan » san chang, dan chan, san chay
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((((canh tranh) or (hanh chinh))) or (thanh trung)) va thong cong san chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((((canh tranh) OR (hanh chinh))) OR (thanh trung)) va thong cong san chan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((((canh tranh) or (hanh chinh))) or (thanh trung)) va thong cong san chan cau*.