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
cach thuc » anh thuc, cac thu
cach hoc » cach thoi, dich hoc, cac hop
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
cu luan » tu luan, su luan, luc luan
hoi cu » hoi chu, hoi cua, hoi cau

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 hoc) or (cach thuc)) tap, nguyen huy toan hoa nhan khong thuoc xa hoi cu luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach hoc) OR (cach thuc)) tap, nguyen huy toan hoa nhan khong thuoc xa hoi cu luan van.
• Adding a wildcard symbol may retrieve word variants: tu ((cach hoc) or (cach thuc)) tap, nguyen huy toan hoa nhan khong thuoc xa hoi cu luan van*.