Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
vai cuu » vai cua
xa hanh » xa thanh, xa khanh, va hanh
cam tuc » cam xuc, nam thuc, dam thuc
mai hoi » mai khoi, dai hoi, lai hoi
ke mang » ke nang, ke trang
ky mang » ky nang, ky dang, ky tang
cuu tre » cua tre, cau tren, cau treo
cam tu » cam thu, nam tu, dam tu

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 ((ky mang) or (ke mang)) mai hoi. hieu van ((cam tuc) OR (cam tu)) xa hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky mang) OR (ke mang)) mai hoi. hieu van ((cam tuc) OR (cam tu)) xa hanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky mang) or (ke mang)) mai hoi. hieu van ((cam tuc) OR (cam tu)) xa hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky mang) or (ke mang)) mai hoi. hieu van ((cam tuc) OR (cam tu)) xa hanh vai cuu tre*.