Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
thu sach » tu sach, thuat sach, thuoc sach
khang xa » khang a, hang ca, lang xa
danh sai » dung sai, danh bat, danh dau
thuc va » thuc vat, thuc dan, thuc day
sai cua » dai cua, hai cua, lai cua
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai
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: thu sach thieu khang xa hoi. hieu ((va cam) OR (va cao)) ((tuc xa) or (thuc va)) danh sai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach thieu khang xa hoi. hieu ((va cam) OR (va cao)) ((tuc xa) OR (thuc va)) danh sai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach thieu khang xa hoi. hieu ((va cam) OR (va cao)) ((tuc xa) or (thuc va)) danh sai cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach thieu khang xa hoi. hieu ((va cam) OR (va cao)) ((tuc xa) or (thuc va)) danh sai cua te*.