Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
trung cap » trung tam
cong vang » cong lang, cong quang, cong ngang
vang phan » van phan, nang phan, quang phan
phan cau » phan dau, phan cac, phan tu

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 sach) or (chieu sang)) - manh ((trung cap) OR (truong cao)) thong cong vang phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - manh ((trung cap) OR (truong cao)) thong cong vang phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chieu sang)) - manh ((trung cap) OR (truong cao)) thong cong vang phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - manh ((trung cap) OR (truong cao)) thong cong vang phan cau*.