Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
tranh van » tran van, trinh van, thanh van
dung cong » dung trong
van dung » van dong, xay dung, tin dung
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan

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 - hanh tranh van dung cong ((tac toan) OR (tam toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh tranh van dung cong ((tac toan) OR (tam toan)) ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh tranh van dung cong ((tac toan) OR (tam toan)) ban*.