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

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 ty xang x hoi. ((hieu va) or (lieu va)) nam ((tu xa) OR (tu xay)) thanh le cua te~.
• 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 ((tu xa) OR (tu xay)) thanh 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 ((tu xa) OR (tu xay)) thanh le cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang x hoi. ((hieu va) or (lieu va)) nam ((tu xa) OR (tu xay)) thanh le cua te*.