Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cua sinh » hoa sinh, va sinh
van than » van thanh, van thang, van phan
van tuan » van quan, van ban, anh tuan
hoi cua » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi cua sinh - hanh tranh cua nhung cong ((van than) or (van tuan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi cua sinh - hanh tranh cua nhung cong ((van than) OR (van tuan)) ban*.