Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tieu sang » chieu sang, tieu dung, tiem nang
tranh cua » doanh cua, manh cua
cong cong » trong cong, dung cong, dang cong
tan khang » van khang, tao khang, tinh khang
khang cau » hang cau, khang cu, khang chan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - hanh tranh cua ((cong cong) or (cong dong)) tan khang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh tranh cua ((cong cong) OR (cong dong)) tan khang cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - hanh tranh cua ((cong cong) or (cong dong)) tan khang cau*.