Perhaps you should try some spelling variations:
tran khoa » toan khoa, san khoa, nhan khoa
chu dich » chu tich, chu dinh, chu thich
dich hoc » sinh hoc, hinh hoc, tinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
hoc tran » hoc tan, hoc tren, boc tran
khoa hoc » hoa hoc
phap vat » phap luat, phap phat, phap viet
hoc xa » hoc ma
phat » phan, pham, nhat

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

• Performing a fuzzy search may retrieve terms with similar spellings: chu dich hoc tap, nghien cuu cong hoc tran khoa hoc xa hoi va ((phat vi) or (phap vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chu dich hoc tap, nghien cuu cong hoc tran khoa hoc xa hoi va ((phat vi) OR (phap vat)).
• Adding a wildcard symbol may retrieve word variants: chu dich hoc tap, nghien cuu cong hoc tran khoa hoc xa hoi va ((phat vi) or (phap vat))*.