Perhaps you should try some spelling variations:
tai cua » thai cua, tai cuc, tri cua
sach ky » sac ky, sach ty, sach kem
ve nhan » ve nha, de nhan, va nhan
hieu ve » hieu va, hieu van
luc va » duc va, tuc va
loc va » hoc va
cua te » cua tu
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 ky) or (sach y)) nang x hoi. hieu ve nhan ((luc va) or (loc va)) doanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang x hoi. hieu ve nhan ((luc va) OR (loc va)) doanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang x hoi. hieu ve nhan ((luc va) or (loc va)) doanh tai cua te*.