Perhaps you should try some spelling variations:
quan trong » gian trong
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
canh dan » canh van, sanh dan, thanh dan
can ban » van ban, toan ban
van tan » van tuan, van ban, van tai

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 - ((canh dan) or (can ban)) quan trong cong ((manh toan) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((canh dan) OR (can ban)) quan trong cong ((manh toan) OR (van tan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((canh dan) or (can ban)) quan trong cong ((manh toan) or (van tan)) cau*.