Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
dang xay » dang van, van xay
te sach » toc sach
va hanh » van hanh, va thanh, va danh
cao xuc » cam xuc, cao duc, cao suc
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
lang xa » lang ha, lang van
so viet » hoc viet
va cao » va cac, va co, va dao
va so » ma so, va su, va co

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 ky ((lang xa) or (dang xay)) hoi. hieu va cao xuc ((va hanh) or (van thanh)) va so viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((lang xa) OR (dang xay)) hoi. hieu va cao xuc ((va hanh) OR (van thanh)) va so viet.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((lang xa) or (dang xay)) hoi. hieu va cao xuc ((va hanh) or (van thanh)) va so viet*.