Perhaps you should try some spelling variations:
khanh luong » khanh duong, khanh thuong, khanh phong
thanh trong » thanh trung, tranh trong, hanh trong
chieu xanh » chieu sach, chieu sang, chieu tinh
luong tham » luong thanh, luong tai, luong thi
trong van » trong cac
van khanh » van thanh, van hanh, van anh
tham quan » pham quan, tam quan, pham quang
quan ban » quang ban, qua ban, quan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((dieu hanh) or (chieu xanh)) - thanh trong van khanh luong tham quan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((dieu hanh) OR (chieu xanh)) - thanh trong van khanh luong tham quan ban.
• Adding a wildcard symbol may retrieve word variants: doc ((dieu hanh) or (chieu xanh)) - thanh trong van khanh luong tham quan ban*.