Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
khong cong » thong cong, khong cang, chong cong
dien anh » tieng anh, dien dan
trang ha » trang va, tang ha, trang cham
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (dien anh)) - hanh ((trang ha) or (trung ha)) khong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (dien anh)) - hanh ((trang ha) OR (trung ha)) khong cong san van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (dien anh)) - hanh ((trang ha) or (trung ha)) khong cong san van ban*.