Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
chieu sang » chieu sach, chieu xanh, hieu lang
tinh trang » minh trang, tinh quang, tinh toan
trung cong » trong cong, trung uong, trang cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 - ((tinh trang) or (canh tranh)) cua ((trung cong) OR (truong cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((tinh trang) OR (canh tranh)) cua ((trung cong) OR (truong cong)) dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((tinh trang) or (canh tranh)) cua ((trung cong) OR (truong cong)) dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((tinh trang) or (canh tranh)) cua ((trung cong) OR (truong cong)) dan toan ban*.