Perhaps you should try some spelling variations:
theo nhieu » theo chieu, theo tieu, he nhieu
nhieu tang » chieu sang, hieu lang, nhiet nang
cua trong » cua truong, cua trung, qua trong
canh ban » can ban, canh dan, canh van
cach van » bach van, canh van, cach mang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
cac van » cac dan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo nhieu tang - ((canh ban) OR (((cach van) OR (cac van)))) cua trong cong san toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo nhieu tang - ((canh ban) or (((cach van) OR (cac van)))) cua trong cong san toan ban~".
• Adding a wildcard symbol may retrieve word variants: theo nhieu tang - ((canh ban) or (((cach van) OR (cac van)))) cua trong cong san toan ban*.