Perhaps you should try some spelling variations:
doc sach » hoc sach, nuoc sach, dac sac
nang cho » nang chon, ngang cho, nang cao
van hanh » van thanh, ban hanh, van anh
toc sach » hoc sach, thuoc sach, nuoc sach
ty nang » ky nang, ty xang, ty hang
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc sach) OR (toc sach)) ty nang cho hoc. hieu ve cac xuc van hanh di cua cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc sach) OR (toc sach)) ty nang cho hoc. hieu ve cac xuc van hanh di cua cau*".