Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
nam thuc » nam thuoc, am thuc, nam thu
toan cua » than cua, tan cua, doanh cua
thuc ban » thuoc ban, thuc dan, thu ban
sach kem » hanh kem
hieu van » hieu va, thien van, lieu va
lang xa » lang ha, dang xay, lang van
dong ha » dong hoa, dong va, dong hoc
sac ky » cac ky, sai ky
cua te » cua tu

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 kem) or (sac ky)) ((lang xa) or (dong ha)) hoi. hieu van nam thuc ban thanh toan cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach kem) OR (sac ky)) ((lang xa) OR (dong ha)) hoi. hieu van nam thuc ban thanh toan cua te.
• Adding a wildcard symbol may retrieve word variants: toc ((sach kem) or (sac ky)) ((lang xa) or (dong ha)) hoi. hieu van nam thuc ban thanh toan cua te*.