Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
cong thuyet » trong thuyet, cong truyen, nang thuyet
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
hung cong » nhung cong, hung cuong, phung cong
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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 - thanh cong thuyet ((hung cong) or (thong cong)) dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - thanh cong thuyet ((hung cong) OR (thong cong)) dan phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - thanh cong thuyet ((hung cong) or (thong cong)) dan phan cac*.