Perhaps you should try some spelling variations:
luc doanh » muc doanh, luat doanh, luc canh
cach hoi » cach thoi, cach noi, cach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
nhan van » nhan dan, nhan va, phan van
tu cach » tu cac
hoi dan » hoa dan, hoc dan, hoi dap
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoi dan, nghien cuu dong luc doanh ((khoa hoc) OR (hoa hoc)) xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoi dan, nghien cuu dong luc doanh ((khoa hoc) OR (hoa hoc)) xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: tu cach hoi dan, nghien cuu dong luc doanh ((khoa hoc) OR (hoa hoc)) xa hoi va nhan van*.