Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh le » thinh le, thanh ve, thanh de
quoc ban » quoc bao, quoc lan, quoc quan
dang cay » dang xay, dang ca, dang cac
cay phoi » cap phoi, tay hoi, cay cho
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
ve cam » ve cac, va cam, ve cai
le cua » ly cua

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 ty) or (sach tu)) dang cay phoi. hieu ((ve cam) or (ve cham)) quoc ban thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) dang cay phoi. hieu ((ve cam) OR (ve cham)) quoc ban thanh le cua vat.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach tu)) dang cay phoi. hieu ((ve cam) or (ve cham)) quoc ban thanh le cua vat*.