Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
phat xuc » chat xuc, phat xuat, phap xu
van hanh » ban hanh, van anh, van ban
dai cuu » dai cua, dai huu
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hieu va » lieu va
ty nang » ky nang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
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 ty nang x hoi. ((hieu va) or (hieu qua)) phat xuc ((van hanh) OR (van thanh)) dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. ((hieu va) OR (hieu qua)) phat xuc ((van hanh) OR (van thanh)) dai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x hoi. ((hieu va) or (hieu qua)) phat xuc ((van hanh) OR (van thanh)) dai cuu tre*".