Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
va trien » va truyen, va thiet, va tuyen
tu sach » thu sach, su sach, te sach
cao hoc » co hoc, cho hoc, chat hoc
y nang » ky nang, ly nang, v nang
qua ca » qua cac, qua cua, qua cai
ca xuc » cam xuc, chat xuc
va va » va van, va vua, va vai

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 y nang cao hoc. hieu qua ca xuc ((ban thanh) or (ban hanh)) va va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang cao hoc. hieu qua ca xuc ((ban thanh) OR (ban hanh)) va va trien.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cao hoc. hieu qua ca xuc ((ban thanh) or (ban hanh)) va va trien*.