Perhaps you should try some spelling variations:
truong quang » truong quan, luong quang, thong quang
thanh truong » thanh trung, thanh thuong, thanh tung
quang dung » quang trung, ung dung, cuong dung
trong tinh » truong tinh, trong kinh, trong sinh
hieu lang » chieu sang, hieu quang, nhieu tang
toan tap » toan 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 ((hieu lang) or (hieu qua)) - thanh truong quang dung trong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu qua)) - thanh truong quang dung trong tinh toan tap*.