Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
ban hang » ngan hang
bach ky » bac ky
qua cam » qua cham, qua cac, qua ca
sinh va » sinh vat, tinh va, dinh van
nang o » nang co, nang ho, nang ro
va tre » va trien
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky nang o hoi. hieu qua cam xuc ((va thanh) or (ban hang)) sinh va tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky nang o hoi. hieu qua cam xuc ((va thanh) OR (ban hang)) sinh va tre.
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang o hoi. hieu qua cam xuc ((va thanh) or (ban hang)) sinh va tre*.