Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
vu khach » vu khanh, vu khac, vay khach
doi thoi » doi thoai, moi thoi, do thoi
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
cong hoc » cong hoa, cong coc, cong ho
cua nhan » ca nhan, cua ngan, cua nha
nhan dan » phan dau, gian dan, nhan tai
vu sach » vu bach, su sach
hoi cua » hoi chuc
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: ((vu sach) OR (vu khach)) doi thoi, nghien cuu dong hoc nganh cong hoc ma hoi cua nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) doi thoi, nghien cuu dong hoc nganh cong hoc ma hoi cua nhan dan".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) doi thoi, nghien cuu dong hoc nganh cong hoc ma hoi cua nhan dan*.