Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
thu sac » thu sach, thu san, thu xac
cac van » cac dan
su tien » su kien, su hien, tu tieng
cac ban » cac dan, can ban, cac bai
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang xa hoi. hieu va nhan ((cac ban) or (cac van)) hanh vi ((va trien) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang xa hoi. hieu va nhan ((cac ban) OR (cac van)) hanh vi ((va trien) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang xa hoi. hieu va nhan ((cac ban) or (cac van)) hanh vi ((va trien) or (su tien))*.