Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh ban » trinh han, trinh san, trinh dan
dung cong » dung trong
ban dung » van dung, dan dung, tan dung
dan than » dan chan, ban than, van than
van toan » van tuan, van tan, van thanh

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 - hanh trinh ban dung cong ((dan than) or (van toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trinh ban dung cong ((dan than) OR (van toan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trinh ban dung cong ((dan than) or (van toan)) tap*.