Perhaps you should try some spelling variations:
cong luong » cong thuong, nang luong, cong dong
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh dinh » thanh dinh, hinh dinh, hanh tinh
doi lieu » duoc lieu, doi chieu, du lieu
dinh cuu » dinh chi
cuu cong » cua cong, thu cong, cac cong
bai toan » bai tap
va toan » van toan, tap toan, va thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - hanh dinh cuu cong luong ((va toan) or (bai toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - hanh dinh cuu cong luong ((va toan) OR (bai toan)) ban.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - hanh dinh cuu cong luong ((va toan) or (bai toan)) ban*.