Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
cua viet » ca viet, hoa viet, cua vat
hanh tai » thanh tai, hang tai, han tai
hanh lai » hanh lam, thanh lap, thanh loi
su sach » so sach, vu sach
khang a » chang ha, khan gia, khang cu
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
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: su sach thieu khang a hoi. hieu ((ve cam) OR (va cam)) tuc va ((hanh lai) or (hanh tai)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thieu khang a hoi. hieu ((ve cam) OR (va cam)) tuc va ((hanh lai) OR (hanh tai)) cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thieu khang a hoi. hieu ((ve cam) OR (va cam)) tuc va ((hanh lai) or (hanh tai)) cua viet*".