Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
cua tre » cua te, cua triet, dua tren
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
cao hoa » cao hoat, cao khoa, cau hoa
cuu tre » cau tren, cau treo

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 ky nang cao hoa. hieu ve chat xuc ((va thanh) or (ban hanh)) vai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang cao hoa. hieu ve chat xuc ((va thanh) OR (ban hanh)) vai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang cao hoa. hieu ve chat xuc ((va thanh) or (ban hanh)) vai ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang cao hoa. hieu ve chat xuc ((va thanh) or (ban hanh)) vai ((cua tre) OR (cuu tre))*.