Perhaps you should try some spelling variations:
luc thanh » duc thanh, luu thanh, tuc thanh
danh nhan » thanh nhan, benh nhan, dung nhan
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
cong hoc » dong hoc, cong hoa, cong coc
tu mach » tu cach, tu manh, tu hach
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: tu mach hoc tap, nghien cuu dong luc thanh cong hoc xa hoi ((danh nhan) OR (doanh nhan)) tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien cuu dong luc thanh cong hoc xa hoi ((danh nhan) OR (doanh nhan)) tai".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu dong luc thanh cong hoc xa hoi ((danh nhan) OR (doanh nhan)) tai*.