Perhaps you should try some spelling variations:
sach tay » xach tay, sach hay, sach nay
tang cho » trang cho, sang cho, tang co
hang cho » sang cho, hang khoa, phong cho
te sach » toc sach
hieu va » lieu va, hieu qua
vuc van » duc van, thuc van, chuc van
luc van » luoc van, luu van, duc van
cua cau » cua cac, cua chu, cua cay
vi cua » vai cua, di 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 tay ((tang cho) or (hang cho)) hoc. hieu va cac ((vuc van) OR (luc van)) hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tay ((tang cho) OR (hang cho)) hoc. hieu va cac ((vuc van) OR (luc van)) hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tay ((tang cho) or (hang cho)) hoc. hieu va cac ((vuc van) OR (luc van)) hanh vi cua cau*".