Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
thu sach » thuat sach, thuoc sach, thu hoach
ban hanh » ban hang
va thanh » gia thanh, ban thanh, va tinh
tu sach » su sach, te sach, tu cach
vai cua » dai cua, hai cua, lai cua
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
cao hoa » cao hoat, cao khoa, cau hoa
cua tre » cua te, cuu tre, cua triet

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