Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
thuat mach » thuat sach, thuat tach, thuyet mach
nghien huu » nghien cuu, nguyen huu, nhiem huu
goc nganh » hoc nganh, hoc nhanh, cac nganh
thanh van » thanh san, thanh toan, thanh phan
mach hoc » cach hoc, dich hoc, anh hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
phan van » pham van, luan van, tran van
huu mot » cuu mot, huy mot, hieu mot
hoi van » hoi va, hoi dan, hai van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat mach hoc tap, nghien huu mot goc nganh khong thuoc xa hoi van ((phan van) or (thanh van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat mach hoc tap, nghien huu mot goc nganh khong thuoc xa hoi van ((phan van) OR (thanh van)).
• Adding a wildcard symbol may retrieve word variants: thuat mach hoc tap, nghien huu mot goc nganh khong thuoc xa hoi van ((phan van) or (thanh van))*.