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

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach hoc tap, nghien thu cong ((cuoc nganh) or (hoc nganh)) cong hoa xa hoi ca phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien thu cong ((cuoc nganh) OR (hoc nganh)) cong hoa xa hoi ca phan van.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien thu cong ((cuoc nganh) or (hoc nganh)) cong hoa xa hoi ca phan van*.