Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
canh manh » lanh manh, canh tranh, cach mang
cong danh » cuong danh, cong dan, cong khanh
manh cua » doanh cua, ban cua
cua tong » cua cong, cua dong, cua nong
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 ((hieu lang) or (chieu sang)) - canh manh cua tong ((cong danh) OR (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu sang)) - canh manh cua tong ((cong danh) OR (cong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (chieu sang)) - canh manh cua tong ((cong danh) OR (cong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu sang)) - canh manh cua tong ((cong danh) OR (cong thanh)) toan ban*.