Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
toc cham » toc thai
thanh ha » thanh hoa, thanh hai, nhanh ha
dong hoc » dong co, dong luc
so sach » so sanh, bo sach, hoc sach
xuc van » duc van, luc van, vuc van
tu cham » thi cham
hoc hoi » hoc khoi, hoc hoa, hoc noi
ly dong » ly dung, lao dong, huy dong
co sach » bo sach, cuon sach, hoc sach
cua tre » cua te, cuu tre, cua triet
ha cua » hoa cua, hai cua, nha cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (co sach)) ly dong hoc hoi. hieu ((tu cham) or (toc cham)) xuc van thanh ha cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) ly dong hoc hoi. hieu ((tu cham) OR (toc cham)) xuc van thanh ha cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (co sach)) ly dong hoc hoi. hieu ((tu cham) or (toc cham)) xuc van thanh ha cua tre*.