Perhaps you should try some spelling variations:
ve triet » va trien, su triet
thanh do » thanh de, thanh pho, thanh hoa
sach tu » sach thu, cach tu, sach uu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach thu, xach tay
ve pham » vi pham, v pham, ve phan
duy va » duy vat, duy van, duy v
do ve » dao ve, do ke, de ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach tu) or (sach ty)) nang xa hoi. hieu ve pham ((duy va) or (day va)) thanh do ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach ty)) nang xa hoi. hieu ve pham ((duy va) OR (day va)) thanh do ve triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (sach ty)) nang xa hoi. hieu ve pham ((duy va) or (day va)) thanh do ve triet*.