Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
thong danh » thong dan, thong lanh, trong danh
hoc thieu » toc thieu, hoc hien
va phuong » va thuong, cac phuong
danh toan » manh toan, anh toan, dan toan
toan tap » toan ban
va cong » tai cong, cua cong

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 - canh tranh ((va cong) or (va phuong)) thong danh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - canh tranh ((va cong) OR (va phuong)) thong danh toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - canh tranh ((va cong) or (va phuong)) thong danh toan tap*.