Perhaps you should try some spelling variations:
chieu lang » chieu sang, hieu lang, chi lang
cong luong » cong thuong, nang luong, cong dong
doi chieu » doc hieu, doi chi, ho chieu
hanh ban » thanh ban, hang ban, hanh san
cong san » cong tac
tuan cau » toan cau, quan cau, tuan cu
ban he » bang he, ban ve, ban le

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 lang - hanh ban he thong ((cong san) or (cong luong)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu lang - hanh ban he thong ((cong san) OR (cong luong)) tuan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu lang - hanh ban he thong ((cong san) or (cong luong)) tuan cau*.