Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhanh lang » nhanh quang, nhanh thang, nhan dang
xuat thong » xuat thuong, suat thong, luat thuong
thong cong » trong cong, tong cong, thong thong
lang xuat » hang xuat, lan xuat, lang xuan
cong san » cong tac
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: theo ((chieu sang) OR (chieu sach)) - nhanh lang xuat thong cong san ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - nhanh lang xuat thong cong san ((toan cao) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu sach)) - nhanh lang xuat thong cong san ((toan cao) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu sach)) - nhanh lang xuat thong cong san ((toan cao) or (van ban))*.