Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
cua trong » cua truong, cua trung, qua trong
manh cua » doanh cua, ban cua
tap doan » tap quan
bai toan » bai tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - canh manh cua trong cong ((tap doan) or (bai toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh manh cua trong cong ((tap doan) OR (bai toan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - canh manh cua trong cong ((tap doan) or (bai toan)) cao*.