Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
so sanh » do sanh
ky dinh » ky sinh, ky danh, ky kinh
dinh xa » dinh ba, dinh va, dinh xu
van lam » van nam
lam tuc » lam thuoc, lam truoc, luat tuc
va tinh » may tinh
tinh ve » trinh ve, tinh ven, dinh ve
tuc va » thuc va, truc va, tuc xa
ve cua » le cua, de cua, te cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ky dinh xa hoi. hieu van lam tuc va tinh ve cua viet~.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) ky dinh xa hoi. hieu van lam tuc va tinh ve cua viet*.