Perhaps you should try some spelling variations:
thang nguoi » thanh nguoi, thong nguoi, tang nguoi
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
chinh sua » chinh su, chinh cua, chinh luan
sua thang » xua thang, suat thong, xuan thang
van thanh » ban thanh, van tuan
van toan » van tuan, van tan, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sang)) - hanh chinh sua thang nguoi ((van toan) OR (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - hanh chinh sua thang nguoi ((van toan) OR (van thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu sang)) - hanh chinh sua thang nguoi ((van toan) OR (van thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - hanh chinh sua thang nguoi ((van toan) OR (van thanh)) cao*.