Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
thu tich » chu tich, chu thich, thue tinh
tich hoc » tinh hoc, dich hoc, tich hop
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
ban luan » bang luan, ban quan, bai luan
ca thai » chat thai, hoa thai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu tich hoc tap, nghien cuu cong hoc nganh khoa hoc ((xa hoi) or (ca thai)) van ban luan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tich hoc tap, nghien cuu cong hoc nganh khoa hoc ((xa hoi) OR (ca thai)) van ban luan.
• Adding a wildcard symbol may retrieve word variants: thu tich hoc tap, nghien cuu cong hoc nganh khoa hoc ((xa hoi) or (ca thai)) van ban luan*.