Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
cuong danh » cuon danh, huong dan, cuong linh
hoc thieu » toc thieu, hoc hien
hanh dung » thanh dung, anh dung, hanh dong
chua bang » chu bang, chua nang, chua xang
cua bang » cua ban, cua dang, cua hang
cong dan » cong san, cong tan, huong dan
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: hoc thieu sang - hanh dung ((cua bang) OR (chua bang)) ((cong dan) or (cuong danh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh dung ((cua bang) OR (chua bang)) ((cong dan) OR (cuong danh)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh dung ((cua bang) OR (chua bang)) ((cong dan) or (cuong danh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh dung ((cua bang) OR (chua bang)) ((cong dan) or (cuong danh)) toan tap*.