Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
truong dao » truong dai, truong cao
nhung cong » dung cong, thong cong, hang cong
vang chinh » hang chinh, van chinh, dang chinh
truong bo » truong cao
cong vang » cong lang, cong quang, cong ngang
chinh can » chinh ca, chinh ban, chinh cau

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 (chieu sach)) - thanh ((truong dao) OR (truong bo)) nhung cong vang chinh can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu sach)) - thanh ((truong dao) OR (truong bo)) nhung cong vang chinh can.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) or (chieu sach)) - thanh ((truong dao) OR (truong bo)) nhung cong vang chinh can".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (chieu sach)) - thanh ((truong dao) OR (truong bo)) nhung cong vang chinh can*.