Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trong long » trong luong, truong long, trong cong
doc chieu » doc hieu, toc thieu, hoc thieu
doi chieu » doc hieu, doi chi, mot chieu
trinh co » trinh do, trinh cong, trinh hoa
co trong » ro trong, cong trong, dot trong
long sat » cong suat, long span, luong san
sat phan » sat nhan, vat phan, xuat phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc chieu) or (doi chieu)) tinh - hanh trinh co trong long sat phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc chieu) OR (doi chieu)) tinh - hanh trinh co trong long sat phan tu*.