Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
khoan va » doan va, khoa ma, nhan va
cong van » cong vang, song van, cong tan
cong san » cong tac
thanh tu » hanh tu, nhanh tu, thanh tung
hoan va » hoang va, doan va, toan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - doanh ((hoan va) or (khoan va)) nhung ((cong van) OR (cong san)) thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - doanh ((hoan va) OR (khoan va)) nhung ((cong van) OR (cong san)) thanh tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - doanh ((hoan va) or (khoan va)) nhung ((cong van) OR (cong san)) thanh tu".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - doanh ((hoan va) or (khoan va)) nhung ((cong van) OR (cong san)) thanh tu*.