Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » thieu khang, thieu quang, hieu lang
chieu sang » chieu sach, chieu xanh, hieu lang
trinh toan » tinh toan, thanh toan, trinh han
dung cong » dung trong
trung ca » trung cap, truong ca, trung cua
toan cau » toan cao, toan ban, toan tap
ca dung » cao dung, cap dung, cu dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu sang) or (chieu sang)) - thanh trung ca dung cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu sang) OR (chieu sang)) - thanh trung ca dung cong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: toc ((thieu sang) or (chieu sang)) - thanh trung ca dung cong trinh toan cau*.