Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
sach tay » xach tay, sach hay, sach nay
tay tang » tay lang, tay trung, tay quang
nhanh li » nhanh vi, thanh loi, nhanh thi
te sach » toc sach
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
va cham » va chat, va tham
truc va » thuc va, thuc vat, trung va
hanh li » hanh vi, han li, thanh loi
ca tren » cau tren, cu tren, la tren

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 tay tang xa hoi. hieu va cham truc va ((hanh li) OR (nhanh li)) ca tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tay tang xa hoi. hieu va cham truc va ((hanh li) OR (nhanh li)) ca tren".
• Adding a wildcard symbol may retrieve word variants: te sach tay tang xa hoi. hieu va cham truc va ((hanh li) OR (nhanh li)) ca tren*.