Perhaps you should try some spelling variations:
cong phan » cong nhan, cong khan, chong phap
phan cong » thanh cong
cong cong » cong dong, trong cong, dung cong
cong lang » cong vang, cong luong, cong quang
lang gian » dan gian, nang giao, lang bien
hoc hieu » hoc thieu, hoc hien, doc hieu
van cong » van dong, van phong, van duong
gian dan » gian lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (toc thieu)) nganh - van cong phan cong cong lang gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (toc thieu)) nganh - van cong phan cong cong lang gian dan.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (toc thieu)) nganh - van cong phan cong cong lang gian dan*.