Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
cua triet » cua viet, su triet, va triet
son thanh » ban thanh, van thanh
hieu van » hieu va, thien van, lieu va
cac bac » cac bai, cac ban, cac cach
cua tre » cua te, cuu tre, dua tren
te sach » toc sach
cac cac » cac cach, ca cac, cac cam
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
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: te sach v nang x hoi. hieu van ((cac cac) or (cac bac)) son thanh hai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang x hoi. hieu van ((cac cac) OR (cac bac)) son thanh hai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te sach v nang x hoi. hieu van ((cac cac) or (cac bac)) son thanh hai ((cua tre) or (cua triet))*.