Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chong cong » cong cong, thong cong, cuong cong
duoc lieu » du lieu
trinh cua » tinh cua, trinh luat, trinh quan
cua chong » cua cong, cua chung, cua khong
doc lieu » doc hieu, du lieu, so lieu
tap toan » tap doan, tap quan, bai toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc lieu) or (duoc lieu)) tinh - hanh trinh cua chong cong ((tan tran) or (tap toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc lieu) OR (duoc lieu)) tinh - hanh trinh cua chong cong ((tan tran) OR (tap toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ((doc lieu) or (duoc lieu)) tinh - hanh trinh cua chong cong ((tan tran) or (tap toan)) cau*.