Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
thanh tuong » thanh thuong, thanh huong, thanh cuong
thanh tung » thanh cong
thong manh » thong minh, thong mang, thong danh
va phuong » va thuong, cac phuong
manh toan » thanh toan, anh tuan, tinh toan
ho thieu » hoc thieu, ho chieu, ho thiet
va thong » va thuong, he thong, va cong
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: ho thieu quang - ((thanh tuong) or (thanh tung)) ((va thong) OR (va phuong)) thong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thieu quang - ((thanh tuong) OR (thanh tung)) ((va thong) OR (va phuong)) thong manh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho thieu quang - ((thanh tuong) or (thanh tung)) ((va thong) OR (va phuong)) thong manh toan ban*".