Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
ngang than » nganh thanh, sang than, nang thanh
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
van quan » van ban
than cau » toan cau, phan cau, than cap
van qua » van quy, van cua, van que

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((van qua) or (van quan)) ((nhung cong) OR (hang cong)) ngang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((van qua) OR (van quan)) ((nhung cong) OR (hang cong)) ngang than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((van qua) or (van quan)) ((nhung cong) OR (hang cong)) ngang than cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((van qua) or (van quan)) ((nhung cong) OR (hang cong)) ngang than cau*.