Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nganh » hoc nhanh
thu dich » thu tich, chu dich, thu ich
dich hoc » sinh hoc, hinh hoc, tinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
mai hoi » mai khoi, dai hoi, lai hoi
va phan » van phan, va phat, va phap
phan va » phan van, nhan va, han va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu dich hoc tap, nghien cuu cong hoc nganh khong thuoc ((xa hoi) or (mai hoi)) va phan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu dich hoc tap, nghien cuu cong hoc nganh khong thuoc ((xa hoi) OR (mai hoi)) va phan va.
• Adding a wildcard symbol may retrieve word variants: thu dich hoc tap, nghien cuu cong hoc nganh khong thuoc ((xa hoi) or (mai hoi)) va phan va*.