Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
cong duoc » cong cuoc, dong duoc, cong duc
sach hoc » sach hoi, mach hoc, sach duoc
cach hoc » cach thuc, cach thoi, dich hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
duoc ma » duoc lam
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao
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: te ((sach hoc) OR (cach hoc)) tap, nghien cuu cong hoc nganh cong duoc ma hoi va nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoc) OR (cach hoc)) tap, nghien cuu cong hoc nganh cong duoc ma hoi va nhan va".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoc) OR (cach hoc)) tap, nghien cuu cong hoc nganh cong duoc ma hoi va nhan va*.