Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
dung cong » dung trong
cao diep » cao dieu, cao hieu, co dien
tuong va » truong va, thuong va, luong va
cong san » cong tac
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: cao diep tinh - thanh tuong va dung cong san ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao diep tinh - thanh tuong va dung cong san ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: cao diep tinh - thanh tuong va dung cong san ((toan tai) or (toan cao))*.