Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
quan trong » gian trong
doi chieu » doc hieu, doi chi, ho chieu
xa truong » cac truong
cong van » cong vang, cong san, song van
van bao » van ban, van dao

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 xanh - ((thanh trung) or (hanh trinh)) ((quan trong) or (xa truong)) cong van bao cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((thanh trung) OR (hanh trinh)) ((quan trong) OR (xa truong)) cong van bao cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((thanh trung) or (hanh trinh)) ((quan trong) or (xa truong)) cong van bao cao*.