Perhaps you should try some spelling variations:
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tung cao » nung cao, truong cao, trung cap
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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 - thanh ((tung cao) or (trung tam)) dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - thanh ((tung cao) OR (trung tam)) dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - thanh ((tung cao) or (trung tam)) dung cong tac toan cao*.