Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cau tren » cu tren, dau tren, ca tren
va thanh » gia thanh, ban thanh, va tinh
chat xuc » chat huu, cam xuc, chao xu
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau treo
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((nang cao) or (nang x)) hoi. hieu va chat xuc va thanh tai ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang cao) OR (nang x)) hoi. hieu va chat xuc va thanh tai ((cuu tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang cao) or (nang x)) hoi. hieu va chat xuc va thanh tai ((cuu tre) or (cau tren))*.