Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
van chat » cao chat
cuu tre » cua tre, cau tren, cau treo
ky tang » ky nang, kho tang, ky trong
tai cuu » tai cuc, tai buu, tai cua
ky dang » ky nang, ky danh
te sai » te tai, te bai, te lai
luc va » duc va, tuc va, loc va
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ((ky tang) OR (ky dang)) ha noi. hieu ((va cam) or (van chat)) luc va thanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ((ky tang) OR (ky dang)) ha noi. hieu ((va cam) OR (van chat)) luc va thanh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ((ky tang) OR (ky dang)) ha noi. hieu ((va cam) or (van chat)) luc va thanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sai ((ky tang) OR (ky dang)) ha noi. hieu ((va cam) or (van chat)) luc va thanh tai cuu tre*.