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
van nhung » van nhuong, va nhung, van hung
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
cong san » cong tac
toan cau » toan ban, toan tap
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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