Perhaps you should try some spelling variations:
trinh toan » tinh toan, thanh toan, trinh han
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
dinh van » sinh vat
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: doi chieu xanh - canh ((dinh van) or (trinh toan)) dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh ((dinh van) OR (trinh toan)) dung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh ((dinh van) or (trinh toan)) dung cong dan toan cao*.