Perhaps you should try some spelling variations:
theo dieu » theo tieu, theo chieu, thuoc dieu
hanh tran » hanh trang, thanh tran, hanh tram
van phong » van dong, hai phong
cong nhat » cong nhan, cong ha, cong suat
tran van » luan van
cong san » cong tac
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu hanh - hanh tran van phong ((cong san) or (cong nhat)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - hanh tran van phong ((cong san) OR (cong nhat)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - hanh tran van phong ((cong san) or (cong nhat)) toan tap*.