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
luan chung » luan chinh
luan hung » lan hung, luan ung, tuan hung
cuong anh » cuong danh, vuong anh, duong anh
anh toan » manh toan, anh tuan, thanh 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: hoc ((thieu sang) or (chieu sang)) - thanh trung ((luan hung) OR (luan chung)) cuong anh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (chieu sang)) - thanh trung ((luan hung) OR (luan chung)) cuong anh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sang) or (chieu sang)) - thanh trung ((luan hung) OR (luan chung)) cuong anh toan ban*".