Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
hanh sinh » hanh tinh, hanh dinh, hinh sinh
dung cong » dung trong
sinh cua » manh cua, dinh cuu, sinh va
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 xanh - hanh sinh cua ((nhung cong) or (dung cong)) dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh sinh cua ((nhung cong) OR (dung cong)) dan ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh sinh cua ((nhung cong) or (dung cong)) dan ((toan cau) or (toan cao))*.