Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
lanh tranh » canh tranh, lan tranh, hanh trinh
cong doanh » cong doan, dong doanh, rong doanh
hoc thieu » toc thieu, hoc hien
lanh manh » lan anh, van manh, anh anh
cuu phong » cuu phuong, cuu chong, luu phong
cong danh » cuong danh, cong dan, cong thanh
thanh dat » thanh san, thanh hai, thanh van

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