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