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
nang co » nang cao, nang doc, nang noi
qua cam » qua cham, qua cac, qua ca
y nang » ky nang, ly nang, v nang
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 co hoc. hieu qua cam 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 co hoc. hieu qua cam xuc ((ban thanh) OR (ban hanh)) va va trien.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang co hoc. hieu qua cam xuc ((ban thanh) or (ban hanh)) va va trien*.