Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
chap dong » phap dong, chap phong, hop dong
cong vang » cong lang, cong quang, cong ngang
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ha dong » hoat dong, van dong

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 sang - hanh tranh ((chap dong) or (ha dong)) cong vang ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh tranh ((chap dong) OR (ha dong)) cong vang ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh tranh ((chap dong) or (ha dong)) cong vang ((toan cau) or (toan ban))*.