Perhaps you should try some spelling variations:
thieu hang » thieu khang, thieu quang, thi hang
ve triet » va trien
su triet » su viet, su tien
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
cham tuc » nham thuc, pham thuc, tham thuc
hieu va » lieu va, hieu qua
va cham » va chat, va tham
cua hoi » cua moi
su sach » so sach, vu sach
tuc va » thuc va, truc va, tuc xa

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 hang ((xa hoi) or (cua hoi)). hieu va cham tuc va thanh vi ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thieu hang ((xa hoi) OR (cua hoi)). hieu va cham tuc va thanh vi ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thieu hang ((xa hoi) or (cua hoi)). hieu va cham tuc va thanh vi ((su triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: su sach thieu hang ((xa hoi) or (cua hoi)). hieu va cham tuc va thanh vi ((su triet) OR (ve triet))*.