Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
mang cua » manh cua, dung cua, ban cua
dan toan » van toan, dan than, manh toan
van than » van thanh, van thang, van tuan

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 - cach mang cua nhung cong ((dan toan) or (van than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - cach mang cua nhung cong ((dan toan) OR (van than)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - cach mang cua nhung cong ((dan toan) or (van than)) tap*.