Perhaps you should try some spelling variations:
dong phan » dung phan, cong phan, dong chan
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
gian cau » gian chau, gian cac, gian cam

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