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
phan van » pham van, thanh van, luan van
tu hanh » du hanh, lu hanh, thuc hanh
mai hoi » mai khoi, dai hoi, lai hoi
va phan » van phan, va phat, va phap

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 phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hanh hoc tap, nghien cuu cong luat doanh ((hoan hoc) OR (hoa hoc)) mai hoi va phan 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 phan van*.