Perhaps you should try some spelling variations:
hoc doanh » hoa doanh, hoc danh, hoc dan
doanh hoa » doanh khoa, doanh hoan, danh hoa
dat ngap » dat nghe
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
cua nhan » ca nhan, cua ngan, cua nha
te sach » toc sach
dao gap » tao gap, dao giao
hoi cua » hoi chuc
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma

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 ((dao gap) or (dat ngap)), nghien cuu cong hoc doanh hoa hoc xa hoi cua nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((dao gap) OR (dat ngap)), nghien cuu cong hoc doanh hoa hoc xa hoi cua nhan va.
• Adding a wildcard symbol may retrieve word variants: te sach ((dao gap) or (dat ngap)), nghien cuu cong hoc doanh hoa hoc xa hoi cua nhan va*.