Perhaps you should try some spelling variations:
cong luat » cong suat, cong luan, cuong luan
hanh hoc » thanh hoc, hinh hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
hoan hoc » toan hoc, hoang hoa, khoan hoi
nhan van » nhan dan, nhan va, phan van
tu hanh » du hanh, lu hanh, thuc hanh
mai hoi » mai khoi, dai hoi, lai hoi
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 hanh hoc tap, nghien cuu cong luat doanh ((hoan hoc) OR (hoa hoc)) mai hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu hanh hoc tap, nghien cuu cong luat doanh ((hoan hoc) OR (hoa hoc)) mai hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: tu hanh hoc tap, nghien cuu cong luat doanh ((hoan hoc) OR (hoa hoc)) mai hoi va nhan van*.