Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
chieu sach » chiet tach, chieu sang, chieu xanh
ngang than » nganh thanh, sang than, nang thanh
dung cong » dung trong
hanh van » thanh van, khanh van, hanh va
than cau » toan cau, phan cau, than cap
van qua » van quan, van quy, van cua

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