Perhaps you should try some spelling variations:
tong cong » cong cong, dung cong, dang cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
hanh dan » thanh dan, hanh san, canh dan
van toan » van tuan, van tan, van thanh
toan ban » van ban
dan cua » dan ca, ban cua, dai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh dan cua ((tong cong) OR (trong cong)) van toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh dan cua ((tong cong) OR (trong cong)) van toan ban*".