Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh khoa » toan khoa
thanh phan » thanh pho, thanh san, thanh toan
coc doanh » cac doanh, hoa doanh, cho doanh
ban thanh » ban hanh, ban hang
thoi tap » toi tap, hoc tap, thoi dai
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
vu cach » va cach, ve cach, tu cach
hoi ban » hoi dan, hoi bai, doi ban
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 cach) or (vu bach)) thoi tap, nghien cua cong coc doanh khoa hoc ma hoi ban thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu cach) OR (vu bach)) thoi tap, nghien cua cong coc doanh khoa hoc ma hoi ban thanh phan.
• Adding a wildcard symbol may retrieve word variants: ((vu cach) or (vu bach)) thoi tap, nghien cua cong coc doanh khoa hoc ma hoi ban thanh phan*.