Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
truong van » trong van, truong va, truong dai
nang cong » nang song, dang cong, bang cong
van nang » van quang, van ban, van dong
san chay » san pham, dan chan, san chi
van chat » cao chat

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) or (chiet tach)) - thanh truong van nang cong ((san chay) OR (van chat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chiet tach)) - thanh truong van nang cong ((san chay) OR (van chat)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chiet tach)) - thanh truong van nang cong ((san chay) OR (van chat)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chiet tach)) - thanh truong van nang cong ((san chay) OR (van chat)) cau*.