Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
ty ngang » ly ngan, te ngan, tu ngan
thuc van » thuc vat, thuc dan, thuc va
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, luc van, chuc van
cua cau » cua chu, cua cay, cua can
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ngang cho hoc. hieu ve cac ((vuc van) OR (thuc van)) hanh vi ((cua cau) OR (cua cac))~.
• 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 (thuc van)) hanh vi ((cua cau) or (cua cac))~".
• Adding a wildcard symbol may retrieve word variants: te sach ty ngang cho hoc. hieu ve cac ((vuc van) OR (thuc van)) hanh vi ((cua cau) or (cua cac))*.