Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cao » truong dai
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cao » trung cap, trung co, trung ca
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
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: hoc chieu xanh - hanh ((trung cao) OR (truong cao)) dung cong tinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh ((trung cao) OR (truong cao)) dung cong tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((trung cao) OR (truong cao)) dung cong tinh toan ban*.