Perhaps you should try some spelling variations:
tranh thuat » trong thuat, tranh chua, tranh thai
chieu xanh » chieu sach, chieu sang, chieu tinh
hang cong » hang nong, bang cong, thanh cong
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - canh tranh thuat ((hang cong) or (((dang cong) OR (dung cong)))) tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh tranh thuat ((hang cong) OR (((dang cong) OR (dung cong)))) tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - canh tranh thuat ((hang cong) or (((dang cong) OR (dung cong)))) tac toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh tranh thuat ((hang cong) or (((dang cong) OR (dung cong)))) tac toan ban*.