Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
thanh de » hanh de, thanh ve, thanh do
va thanh » gia thanh, ban thanh, va tinh
pham duy » pham duc
hieu van » hieu va, thien van, lieu va
sach tu » sach thu, cach tu, sach uu
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach thu, xach tay
duy va » duy vat, duy van, day va
de su » den su, ve su, de tu

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) OR (hieu van)) pham duy va thanh de su 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) OR (hieu van)) pham duy va thanh de su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) or (sach ty)) nang xa hoi. ((hieu ve) OR (hieu van)) pham duy va thanh de su triet*".