Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nguyen huy » nguyen huu, nguyen duy, nguyen duc
nhan khong » nhan thong, nhanh chong, nganh khong
huy toan » huy tran, huu toan, huy hoang
toan hoa » toan khoa, toan hoat, toan hoc
hoa nhan » hoa phan, hoa han, hoa nhap
thuoc xa » thuoc ma, thuoc va, thuoc la
su luan » tu luan, luc luan
hoi su » hoi suc, khoi su, thoi su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) OR (tu cac)) hoc tap, nguyen huy toan hoa nhan khong thuoc xa hoi su luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) OR (tu cac)) hoc tap, nguyen huy toan hoa nhan khong thuoc xa hoi su luan van".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) OR (tu cac)) hoc tap, nguyen huy toan hoa nhan khong thuoc xa hoi su luan van*.