Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
chu tinh » chau tinh, chua tinh, cuu tinh
toan tap » toan ban
hoi chu » 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 chu tinh - ((canh tranh) or (hanh chinh)) cua nhung cong vang toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu tinh - ((canh tranh) OR (hanh chinh)) cua nhung cong vang toan tap.
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - ((canh tranh) or (hanh chinh)) cua nhung cong vang toan tap*.