Perhaps you should try some spelling variations:
hanh via » hanh vi, hanh va, anh va
te sach » toc sach
vu nang » vuc nang, va nang, vu dang
hieu ve » hieu va, hieu van
ve giao » te giao, viet giao, van giao
duc van » duc va, duc manh, duc phan
via cuu » via cua, vinh cuu
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 ((y nang) or (vu nang)) x hoi. hieu ve giao ((duc van) OR (duc tan)) hanh via cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (vu nang)) x hoi. hieu ve giao ((duc van) OR (duc tan)) hanh via cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (vu nang)) x hoi. hieu ve giao ((duc van) OR (duc tan)) hanh via cuu tre*".