Perhaps you should try some spelling variations:
cac khanh » cac thanh, cach nhanh, khac khanh
khanh hoa » thanh hoa, hang hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
thu cach » thuc cach, thu canh, tu cach
cach hoc » cach thuc, cach thoi, dich hoc
cuu cong » cua cong, thu cong, cac cong
cong cac » cuong cac, cong tac, cong cau
va nhan » van nhan, ca nhan, va phan
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu cach hoc tap, nghien cuu cong cac khanh hoa hoc xa hoi ((va nhan) or (danh nhan)) va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu cach hoc tap, nghien cuu cong cac khanh hoa hoc xa hoi ((va nhan) OR (danh nhan)) va.
• Adding a wildcard symbol may retrieve word variants: thu cach hoc tap, nghien cuu cong cac khanh hoa hoc xa hoi ((va nhan) or (danh nhan)) va*.