Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong toan » cong tan, cong hoan, cong tuan
toan ban » van ban
ban can » ban dan, ban hang, ban hanh

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 xanh) or (chieu sach)) - thanh trung ((cua trong) or (qua trong)) cong toan ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - thanh trung ((cua trong) OR (qua trong)) cong toan ban can.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - thanh trung ((cua trong) or (qua trong)) cong toan ban can*.