Perhaps you should try some spelling variations:
chat cua » nhat cua, chat va, chat huu
de thanh » le thanh
cham cuu » cap cuu
ve thanh » le thanh, den thanh, ha thanh
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
xang xa » lang xa, mang xa, ang xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty xang xa hoi. hieu ve ((cham cuu) OR (chat cua)) ((ve thanh) or (de thanh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty xang xa hoi. hieu ve ((cham cuu) OR (chat cua)) ((ve thanh) OR (de thanh)) dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty xang xa hoi. hieu ve ((cham cuu) OR (chat cua)) ((ve thanh) or (de thanh)) dai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ty xang xa hoi. hieu ve ((cham cuu) OR (chat cua)) ((ve thanh) or (de thanh)) dai cua tre*.