Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach thu » sach thue, sach thieu, sach tham
cham xuc » cam xuc, chat xuc, cham soc
hang di » hang doi, hang vi, hang dien
va hang » van hang, va nang, va lang
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
xuc va » duc va, tuc va, luc va
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 thu ((nang xa) or (lang xa)) hoi. ((hieu va) or (hieu qua)) cham xuc va hang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thu ((nang xa) OR (lang xa)) hoi. ((hieu va) OR (hieu qua)) cham xuc va hang di cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach thu ((nang xa) or (lang xa)) hoi. ((hieu va) or (hieu qua)) cham xuc va hang di cua tre*.