Perhaps you should try some spelling variations:
ve triet » va trien, su triet
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
sach tu » sach thu, cach tu, sach ty
qua cam » qua cham, qua cac, qua ca
cam duc » cam xuc, cao duc, pham duc
danh di » danh du, xanh di, danh dien
dinh du » dinh duc, dinh cu, dinh tu
tu sach » thu sach, su sach, te sach

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 ((nang xa) OR (nang ma)) hoi. hieu qua cam duc va ((danh di) or (dinh du)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu ((nang xa) OR (nang ma)) hoi. hieu qua cam duc va ((danh di) OR (dinh du)) ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tu ((nang xa) OR (nang ma)) hoi. hieu qua cam duc va ((danh di) or (dinh du)) ve triet".
• Adding a wildcard symbol may retrieve word variants: tu sach tu ((nang xa) OR (nang ma)) hoi. hieu qua cam duc va ((danh di) or (dinh du)) ve triet*.