Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
khau luan » khoa luan, phap luan, pham luan
cach hoc » cach thuc, cach thoi, dich hoc
cong hoc » dong hoc, cong hoa, cong coc
lau luan » dau luan, lap luan, thau luan
tu cach » tu cac
son hoc » mon hoc, so hoc, son hoa
ma hoi » mai hoi, xa hoi, ma hoa

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 hoc tap, nghien huu son hoc nganh cong hoc ma hoi ((lau luan) OR (khau luan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien huu son hoc nganh cong hoc ma hoi ((lau luan) OR (khau luan)) van".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien huu son hoc nganh cong hoc ma hoi ((lau luan) OR (khau luan)) van*.