Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
toc chieu » toc thieu, doc hieu, hoc thieu
trinh han » trinh quan
cong cong » cong dong, trong cong, dung cong
phap phan » phap phat, phap hoan, phap luan
han cong » phan cong, hang cong, hanh cong

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 - canh trinh han cong cong ((phap phan) or (kham pha)) bi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu xanh - canh trinh han cong cong ((phap phan) OR (kham pha)) bi*.