Perhaps you should try some spelling variations:
chieu lang » chieu sang, hieu lang, chi lang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tan toan » tan tran, van toan, dan 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 lang - hanh tranh cua cong cong ((tan toan) or (tap toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu lang - hanh tranh cua cong cong ((tan toan) OR (tap toan)) tap*.