Perhaps you should try some spelling variations:
danh de » hanh de, dang de, danh di
dao tuc » dao duc
sach ty » sach y, sach thu, xach tay
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach uu
dan de » dan den, dang de, van de
va dao » ca dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) or (sach tu)) nang xa hoi. hieu va dao tuc xa ((danh de) OR (dan de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) nang xa hoi. hieu va dao tuc xa ((danh de) OR (dan de)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) or (sach tu)) nang xa hoi. hieu va dao tuc xa ((danh de) OR (dan de)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach tu)) nang xa hoi. hieu va dao tuc xa ((danh de) OR (dan de)) cua tre*.