Perhaps you should try some spelling variations:
cham thuong » pham thuong, chan thuong, chap thuong
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
lanh hanh » lanh manh, lenh hanh, xanh hanh
hanh cham » thanh pham, hanh lam, hanh nam
dung dan » dung dat, dung san, tung dan
thanh tu » hanh tu, nhanh tu, thanh tung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (hieu lang)) - lanh hanh cham thuong ((doanh doanh) or (dung dan)) thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (hieu lang)) - lanh hanh cham thuong ((doanh doanh) OR (dung dan)) thanh tu.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (hieu lang)) - lanh hanh cham thuong ((doanh doanh) or (dung dan)) thanh tu*.