Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
canh manh » lanh manh, canh tranh, cach mang
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
manh va » hanh va, anh va, minh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - canh manh va nhung ((cong san) or (cong tac)) ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - canh manh va nhung ((cong san) OR (cong tac)) ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - canh manh va nhung ((cong san) or (cong tac)) ((toan cau) or (toan tap))*.