Perhaps you should try some spelling variations:
thien van » thi van
hang loi » thang loi, hang doi, tang loi
van hang » van khang, van hoang, van thang
te sach » toc sach
loi cua » loai cua, hoi cua, doi cua
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
mang xa » mang may, dang xay, mang cua

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 ty ((mang xa) or (lang xa)) hoi. ((hieu va) or (thien van)) cam duc van hang loi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((mang xa) OR (lang xa)) hoi. ((hieu va) OR (thien van)) cam duc van hang loi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((mang xa) or (lang xa)) hoi. ((hieu va) or (thien van)) cam duc van hang loi cua tre*.