Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
thanh di » thanh doi, thanh de, thanh do
sach vu » sach va, sach tu, sach uu
vu nang » vuc nang, va nang, vu dang
nang xa » nang x, lang xa, nang ma
xuc ban » duc ban, cuc ban, quoc ban
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach vu nang xa hoi. ((((hieu va) or (hieu qua))) or (lieu va)) cam xuc ban thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach vu nang xa hoi. ((((hieu va) OR (hieu qua))) OR (lieu va)) cam xuc ban thanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: toc sach vu nang xa hoi. ((((hieu va) or (hieu qua))) or (lieu va)) cam xuc ban thanh di cua triet*.