Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nang duong » nang luong, nang dong, tang duong
qua trong » quan trong, qua trinh, qua song
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
phan cac » nhan cach, phan dau, phan lap

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) or (chieu xanh)) - nang duong qua trong cong san ((toan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - nang duong qua trong cong san ((toan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - nang duong qua trong cong san ((toan cau) or (phan cac))*.