Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
ho chieu » theo chieu, hoc thieu, doi chieu
lan hung » van hung, luan chung, lan phuong
van dung » van dong, xay dung, tin dung
tac toan » tam toan, hach toan, tich toan
tap toan » tap doan, tap quan, bai toan

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 - hanh trinh ((lan hung) or (van dung)) cong ((tac toan) OR (tap toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trinh ((lan hung) OR (van dung)) cong ((tac toan) OR (tap toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh trinh ((lan hung) or (van dung)) cong ((tac toan) OR (tap toan)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trinh ((lan hung) or (van dung)) cong ((tac toan) OR (tap toan)) cao*.