Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham duc » pham duc, cham soc, pham duy
dang de » dang deo, dung de, dang do
danh di » danh du, xanh di, danh dien
sach tu » sach thu, cach tu, sach uu
hien tu » khien tu, dien tu
sach ty » sach y, sach thu, xach tay
tu cham » toc cham, thi cham
x hoi » xa hoi, o hoi, x ho

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 x hoi. hien tu cham duc va ((danh di) or (dang de)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach ty)) nang x hoi. hien tu cham duc va ((danh di) OR (dang de)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) OR (sach ty)) nang x hoi. hien tu cham duc va ((danh di) or (dang de)) su triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) OR (sach ty)) nang x hoi. hien tu cham duc va ((danh di) or (dang de)) su triet*.