Perhaps you should try some spelling variations:
anh xquang » anh quang, anh quan, anh xuan
xquang cua » quang cua, quan cua, quang cu
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((dieu hanh) or (hien hanh)) - anh xquang cua nhung cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (hien hanh)) - anh xquang cua nhung cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (hien hanh)) - anh xquang cua nhung cong van toan ban*.