Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
sanh thieu » sach thieu, thanh thieu, hanh thiet
thien van » thi van
kham chua » kham pha
khang ma » khan ma, khang a, khong ma
hieu van » hieu va, lieu va, hieu ve
hanh tai » thanh tai, hang tai, han tai
so sanh » do sanh
chua va » chuc va, chua may, chuan ha
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh thieu khang ma hoi. ((hieu van) or (thien van)) kham chua va hanh tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thieu khang ma hoi. ((hieu van) OR (thien van)) kham chua va hanh tai cua tu.
• Adding a wildcard symbol may retrieve word variants: so sanh thieu khang ma hoi. ((hieu van) or (thien van)) kham chua va hanh tai cua tu*.