Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
nphan dang » nhan dang, nhan dan, phan dong
hoc thieu » toc thieu, hoc hien
phan dang » phan dau, phan cong, nhan dan
luan dung » lan dung, luan dong, luan hung
dung dat » dung va, dung tai
dat van » dao van, dat va, dam van
van phi » van chi, van phu, van nhi
phi dau » phan dau

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 - ((phan dang) or (nphan dang)) luan dung dat van phi dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - ((phan dang) OR (nphan dang)) luan dung dat van phi dau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - ((phan dang) or (nphan dang)) luan dung dat van phi dau*.