Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hanh tran » hanh trang, thanh tran, hanh tram
hang nong » thang long, han tong
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
toan ban » van ban

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 tran van ((nhung cong) or (hang nong)) manh ((doanh tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tran van ((nhung cong) OR (hang nong)) manh ((doanh tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tran van ((nhung cong) or (hang nong)) manh ((doanh tai) or (toan ban))*.