Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
khong cong » thong cong, khong cang, chong cong
trang cua » tranh cua, tang cua, trung cua
cua khong » hua khong, cua phuong, cua thuong
tien anh » tieng anh, tien manh, dien anh
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 (chieu sach))) or (tien anh)) - hanh trang cua khong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu sach))) OR (tien anh)) - hanh trang cua khong cong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu xanh) OR (chieu sach))) or (tien anh)) - hanh trang cua khong cong san van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) OR (chieu sach))) or (tien anh)) - hanh trang cua khong cong san van ban*.