Perhaps you should try some spelling variations:
sach nham » sach nha, sach tham, sach han
nham nang » phap nang, cam nang, kha nang
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van minh
te sach » toc sach
cao hoc » co hoc, cho hoc, chat hoc
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
van anh » van thanh, tuan anh, van minh
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 nham nang cao hoc. hieu van cac xuc ((((van hanh) OR (van ban))) or (van anh)) vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach nham nang cao hoc. hieu van cac xuc ((((van hanh) OR (van ban))) OR (van anh)) vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach nham nang cao hoc. hieu van cac xuc ((((van hanh) OR (van ban))) or (van anh)) vi cua cau*".