Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
nhung cong » dung cong, thong cong, hang cong
hanh phan » thanh phan, anh phan, hanh han
van nhung » van nhuong, va nhung, van hung
phan van » pham van, thanh van, luan van
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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 sach) or (chieu xanh)) - hanh phan van nhung cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu xanh)) - hanh phan van nhung cong anh tuan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chieu xanh)) - hanh phan van nhung cong anh tuan cau*.