Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
toc sach » hoc sach, doc sach, thuoc sach
luc tuan » luc luan, luc quan, luu tuan
ty ngang » ly ngan, te ngan, tu ngan
hanh ve » hanh vi, hanh va, hanh kem
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
cua cay » cua cac
ve cac » va cac, vien cac
anh ve » anh va, anh viet, thanh ve

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) OR (toc sach)) ty ngang cho hoc. hieu ve cac luc tuan ((anh ve) or (hanh ve)) cua cay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty ngang cho hoc. hieu ve cac luc tuan ((anh ve) OR (hanh ve)) cua cay*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty ngang cho hoc. hieu ve cac luc tuan ((anh ve) or (hanh ve)) cua cay*".