Perhaps you should try some spelling variations:
xa thanh » va thanh, ha thanh, ta thanh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
hieu va » hieu qua
xang x » nang x
thu xa » thu xac, thu ha, thu xe
ve cua » de cua, te cua, ve cum
le cua » ly cua
x hoi » xa hoi, o hoi, x ho

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: su sach ty xang x hoi. ((hieu va) OR (lieu va)) nam thu xa thanh ((ve cua) OR (le cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang x hoi. ((hieu va) or (lieu va)) nam thu xa thanh ((ve cua) OR (le cua)) te~".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang x hoi. ((hieu va) or (lieu va)) nam thu xa thanh ((ve cua) OR (le cua)) te*.