Perhaps you should try some spelling variations:
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
luc danh » luoc danh, luc canh, luan danh
danh hoa » thanh hoa, khanh hoa, nganh hoa
cu doanh » cua doanh, cu danh, su doanh
bo sach » hoc sach
co sach » cuon sach, hoc sach
moi tai » hoi tai, mo tai, moi thoi
hoc xa » hoc ma
hoi cu » hoi chu, hoi cua, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) or (co sach)) moi tai, nghien cuu dong luc danh hoa hoc xa hoi cu doanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (co sach)) moi tai, nghien cuu dong luc danh hoa hoc xa hoi cu doanh tai.
• Adding a wildcard symbol may retrieve word variants: ((bo sach) or (co sach)) moi tai, nghien cuu dong luc danh hoa hoc xa hoi cu doanh tai*.