Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
ty ngang » ly ngan, te ngan, tu ngan
te sach » toc sach
sach ty » sach y, sach tu, sach thu
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
vuc van » duc van, thuc van, chuc van
luc van » luoc van, luu van, duc van
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ngang cho hoc. hieu ve cac ((vuc van) OR (luc van)) hanh vi cua cau~".
• Adding a wildcard symbol may retrieve word variants: te sach ty ngang cho hoc. hieu ve cac ((vuc van) OR (luc van)) hanh vi cua cau*.