Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
cong doanh » cong doan, dong doanh, rong doanh
hoc thieu » toc thieu, hoc hien
lanh dinh » hanh dinh, thanh dinh, binh dinh
cuu phong » cuu phuong, cuu chong, luu phong
cong danh » cuong danh, cong dan, cong thanh
thanh dat » thanh san, thanh hai, thanh van
anh dinh » hanh dinh, anh kinh, anh dich

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 - ((lanh dinh) OR (anh dinh)) cuu phong ((cong doanh) or (cong danh)) thanh dat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((lanh dinh) OR (anh dinh)) cuu phong ((cong doanh) OR (cong danh)) thanh dat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - ((lanh dinh) OR (anh dinh)) cuu phong ((cong doanh) or (cong danh)) thanh dat".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((lanh dinh) OR (anh dinh)) cuu phong ((cong doanh) or (cong danh)) thanh dat*.