Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cuoc nganh » hoc nganh, cac nganh, cua nganh
chuc nganh » chuc nang, hoc nganh, cac nganh
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
phan van » pham van, thanh van, luan van
su sach » so sach, vu sach
ca phan » cac phan, cao phan, cap phan
ma hoi » mai hoi, xa hoi, ma hoa
hoi ca » hoi cua, hoi cac, hoi cau

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach hoc tap, nghien thu cong ((cuoc nganh) OR (chuc nganh)) cong hoc ma hoi ca phan van~".
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien thu cong ((cuoc nganh) OR (chuc nganh)) cong hoc ma hoi ca phan van*.