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 vai » hanh vi, hanh va, hanh tai
so sanh » do sanh
chua va » chuc va, chua may, chuan ha
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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 vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thieu khang ma hoi. ((hieu van) OR (thien van)) kham chua va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh thieu khang ma hoi. ((hieu van) OR (thien van)) kham chua va hanh vai cua te*.