Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
dinh xa » dinh ba, dinh va, dinh xu
hieu va » lieu va, hieu qua
hanh ve » hanh vi, hanh va, hanh kem
y dinh » my dinh, _ dinh, o dinh
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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 y dinh xa hoi. hieu va cac ((luc va) or (tuc va)) hanh ve ((su triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y dinh xa hoi. hieu va cac ((luc va) OR (tuc va)) hanh ve ((su triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach y dinh xa hoi. hieu va cac ((luc va) or (tuc va)) hanh ve ((su triet) or (cua te))*.