Perhaps you should try some spelling variations:
truong chung » truong trung
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
doi chieu » doc hieu, doi chi, mot chieu
doanh cac » doanh bac, doanh cao, doanh chau
chung van » phung van, nhung van, chung han
thanh bac » nhanh bac, thanh bai, thanh hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh doanh cac truong chung van ((thanh san) or (thanh bac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh doanh cac truong chung van ((thanh san) OR (thanh bac)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh doanh cac truong chung van ((thanh san) or (thanh bac))*.