Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
nang cho » nang chon, ngang cho, nang cao
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, xach tay
cho hoc » co hoc, khoa hoc
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
anh vi » hanh vi, anh ve, anh vu
anh va » hanh va

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 ty) or (sach thu)) nang cho hoc. hieu ve cac xuc van ((anh vi) OR (anh va)) cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ty) OR (sach thu)) nang cho hoc. hieu ve cac xuc van ((anh vi) OR (anh va)) cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ty) or (sach thu)) nang cho hoc. hieu ve cac xuc van ((anh vi) OR (anh va)) cua cau*".