Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
va thanh » gia thanh, ban thanh, va tinh
ban hanh » ban hang
van chat » cao chat
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang cao hoi. hieu van chat xuc ((ban hanh) or (va thanh)) vi ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang cao hoi. hieu van chat xuc ((ban hanh) OR (va thanh)) vi ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang cao hoi. hieu van chat xuc ((ban hanh) or (va thanh)) vi ((cuu tre) or (cua tre))*.