Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
dung cong » dung trong
sinh cua » manh cua, dinh cuu, sinh va
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

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