Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
duong cong » dung cong, luong cong, duong trong
chinh qua » chinh cua, chinh quoc, chinh luan
chinh sua » chinh su, chinh cua, chinh luan
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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) OR (chiet tach)) - hanh ((chinh qua) or (chinh sua)) duong cong tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - hanh ((chinh qua) OR (chinh sua)) duong cong tan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chiet tach)) - hanh ((chinh qua) or (chinh sua)) duong cong tan than cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chiet tach)) - hanh ((chinh qua) or (chinh sua)) duong cong tan than cau*.