Perhaps you should try some spelling variations:
thieu nien » thien nhien
luoc van » luoc can, luoc va, luc van
nien cac » vien cac, dien cac, bien cac
su triet » su viet, su tien, ve triet
tang ma » mang may, tang van
sach ky » sac ky, sach y, sach ty
mang xa » lang xa, mang may, dang xay
loc van » hoc van, lo van, loc va
anh cua » manh cua, hanh cua, canh cua
su sach » so sach, vu sach
cua su » qua su

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 ky ((mang xa) or (tang ma)) hoi. thieu nien cac ((loc van) OR (luoc van)) anh cua su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((mang xa) OR (tang ma)) hoi. thieu nien cac ((loc van) OR (luoc van)) anh cua su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((mang xa) or (tang ma)) hoi. thieu nien cac ((loc van) OR (luoc van)) anh cua su triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((mang xa) or (tang ma)) hoi. thieu nien cac ((loc van) OR (luoc van)) anh cua su triet*.