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
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
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: theo ((chieu sang) or (chiet tach)) - hanh tranh cua nhung cong vang ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chiet tach)) - hanh tranh cua nhung cong vang ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chiet tach)) - hanh tranh cua nhung cong vang ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chiet tach)) - hanh tranh cua nhung cong vang ((toan cau) OR (toan tap))*.