Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
toc chieu » toc thieu, doc hieu, hoc thieu
trinh han » trinh quan
dung cong » dung trong
han dung » chan dung, han duong, hanh dung
khai pha » khai thac

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu xanh - hanh trinh han dung cong ((khai pha) or (kham pha)) bi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu xanh - hanh trinh han dung cong ((khai pha) OR (kham pha)) bi*.