Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
pham thuc » phap thuc, pham chuc, nham thuc
dieu cua » dieu tra
cham tuc » nham thuc, tham thuc, cham soc
te sach » toc sach
khang a » chang ha, khan gia, khang cu
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
de cua » le cua, te 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) OR (pham thuc)) va hanh ((de 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) OR (pham thuc)) va hanh ((de 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) OR (pham thuc)) va hanh ((de cua) or (dieu cua)) tu*".