Perhaps you should try some spelling variations:
hien quang » dien quang, bien quang, hien quan
thanh tung » thanh cong
cua truong » cua trung, xuan truong, cac truong
cua trong » cua trung, qua trong, ca trong
cong tinh » cong trinh, cong vinh, long tinh
doi hien » doi dien, doi bien, doi kien
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: doi hien quang - thanh tung ((cua trong) or (cua truong)) cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hien quang - thanh tung ((cua trong) OR (cua truong)) cong tinh toan ban*.