Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
nhan thuc » nhan luc, dan thuc, toan thuc
toc sach » hoc sach, doc sach, thuoc sach
khang cu » khung cua, thang cua, chung cu
dieu cua » dieu tra
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
cu hoi » cau hoi, cua hoi, cuu hoi
de cua » le cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thieu khang cu hoi. hieu va nhan thuc va danh ((de cua) or (dieu cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thieu khang cu hoi. hieu va nhan thuc va danh ((de cua) OR (dieu cua)) tu.
• Adding a wildcard symbol may retrieve word variants: toc sach thieu khang cu hoi. hieu va nhan thuc va danh ((de cua) or (dieu cua)) tu*.