Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong dang » cong dong, cong dan, cong dung
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chiet tach)) - hanh tranh cua thong cong dang ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chiet tach)) - hanh tranh cua thong cong dang ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chiet tach)) - hanh tranh cua thong cong dang ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chiet tach)) - hanh tranh cua thong cong dang ((toan cau) OR (toan ban))*.