Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
dieu cua » dieu tra
cham tuc » nham thuc, pham thuc, tham thuc
te sach » toc sach
khang a » chang ha, khan gia, khang cu
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
te cua » tue cua, le cua
tuc va » thuc va, truc va, tuc xa
de cua » le cua
a hoi » xa hoi, va hoi, o hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thieu khang a hoi. hieu va cham tuc va hanh ((((de cua) OR (te cua))) or (dieu cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thieu khang a hoi. hieu va cham tuc va hanh ((((de cua) OR (te cua))) OR (dieu cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thieu khang a hoi. hieu va cham tuc va hanh ((((de cua) OR (te cua))) or (dieu cua)) tu".
• Adding a wildcard symbol may retrieve word variants: te sach thieu khang a hoi. hieu va cham tuc va hanh ((((de cua) OR (te cua))) or (dieu cua)) tu*.