Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
danh te » danh tu, danh het, danh yen
sach ty » sach y, sach tu, sach thu
hang xa » hoang xa, hang va, hang ca
hieu ve » hieu van
ty hang » ly hang, ty xang, thi hang
tuc va » thuc va, truc va, duc va
te cua » tue cua, le cua, de cua
cua te » cua tu

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

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