Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
te sach » toc sach
nam qua » nam quan, nam cua, nam mua
van cua » vang cua, ban cua, dan cua
qua ban » cua ban, qua quan
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, me hoi

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 nang ((ma hoi) or (ma hoa)). ((hieu ve) or (lieu va)) nam qua ban thanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((ma hoi) OR (ma hoa)). ((hieu ve) OR (lieu va)) nam qua ban thanh van cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((ma hoi) or (ma hoa)). ((hieu ve) or (lieu va)) nam qua ban thanh van cua tre*.