Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu va » lieu va, hieu qua
ky tang » ky nang, kho tang, ky trong
vai cua » dai cua, hai cua, lai cua
ky dang » ky nang, ky danh
dan hoc » van hoc, dan toc, dai hoc
va chat » van chat, va phat, cao chat
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
tu sai » tu bai, tu san, tu cai
cua tu » cua tuc, cua su, cua cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ((ky tang) OR (ky dang)) dan hoc. hieu va chat ((xuc van) OR (duc van)) hanh vai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ((ky tang) OR (ky dang)) dan hoc. hieu va chat ((xuc van) or (duc van)) hanh vai cua tu~".
• Adding a wildcard symbol may retrieve word variants: tu sai ((ky tang) OR (ky dang)) dan hoc. hieu va chat ((xuc van) or (duc van)) hanh vai cua tu*.