Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
hieu van » hieu va, thien van, lieu va
xay hanh » day nhanh, day thanh, xuan hanh
cuu tre » cua tre, cau tren, cau treo
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
cam tu » cam thu, dam tu, tam tu
nam tu » nam thu, nam thuc
va cuu » va cau, va chu, va huu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang x ho. hieu van ((cam tu) OR (nam tu)) ((xay hanh) or (xanh hanh)) va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x ho. hieu van ((cam tu) OR (nam tu)) ((xay hanh) OR (xanh hanh)) va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x ho. hieu van ((cam tu) OR (nam tu)) ((xay hanh) or (xanh hanh)) va cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x ho. hieu van ((cam tu) OR (nam tu)) ((xay hanh) or (xanh hanh)) va cuu tre*.