Perhaps you should try some spelling variations:
cong toan » cong tan, cong hoan, cong tuan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cua dung » cua dang, cua dong, qua dung
cua nong » cuu nong, cua dong, cua song
toan van » tran van, toan ban, tan van
van tu » van thu, van du, ban tu

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 tranh ((cua dung) or (((cua nong) or (cua cong)))) cong toan van tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - canh tranh ((cua dung) OR (((cua nong) OR (cua cong)))) cong toan van tu.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - canh tranh ((cua dung) or (((cua nong) or (cua cong)))) cong toan van tu*.