Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
cua truong » xuan truong, cac truong, xa truong
cua trung » xuan trung, cua nhung, ba trung
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan cao » toan cao, juan cao, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sach)) - chinh doanh ((cua truong) OR (cua trung)) cong van tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - chinh doanh ((cua truong) OR (cua trung)) cong van tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - chinh doanh ((cua truong) OR (cua trung)) cong van tuan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - chinh doanh ((cua truong) OR (cua trung)) cong van tuan cao*.