Perhaps you should try some spelling variations:
nganh chung » nhanh chuong, nganh cong, nhanh chong
hoc nganh » hoc nhanh
chung hoc » trung hoc, dung hoc, hung hoa
cach toi » cach thoi, cac toi, cach noi
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
hoi danh » hop danh, hoi dan, hoc danh
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
toi tap » toi gap, toan tap, tong tap
nhan va » nhan tai, nhan tao, phan van
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 toi tap, nghien cuu cong hoc nganh chung hoc ma hoi danh ((nhan va) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach toi tap, nghien cuu cong hoc nganh chung hoc ma hoi danh ((nhan va) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: tu cach toi tap, nghien cuu cong hoc nganh chung hoc ma hoi danh ((nhan va) or (nhan dan))*.