Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
danh xa » danh ca, dinh xa, canh xa
hieu va » lieu va, hieu qua
hanh ve » hanh vi, hanh va, hanh kem
cua te » cua tu
tuc va » thuc va, truc va, tuc xa
sach 1 » sach y, sach 2
luc va » duc va, loc va
1 danh » 2 danh

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 1 danh xa hoi. hieu va cac ((luc va) or (tuc va)) hanh ve ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach 1 danh xa hoi. hieu va cac ((luc va) OR (tuc va)) hanh ve ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach 1 danh xa hoi. hieu va cac ((luc va) or (tuc va)) hanh ve ((cua triet) or (cua te))*.