Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
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
ban soan » bien soan, ban doanh, nang soan
hai van » thai van, ha van, hai tan
ban san » ban dan, ban can, ban sac
ma hai » ta hai, va hai, xa hai

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 hoa hoc ma hai van ((ban san) or (ban soan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tich hoc tap, nghien cuu cong hoc nganh hoa hoc ma hai van ((ban san) OR (ban soan)).
• Adding a wildcard symbol may retrieve word variants: thu tich hoc tap, nghien cuu cong hoc nganh hoa hoc ma hai van ((ban san) or (ban soan))*.