Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
nhan luc » nang luc
bat hanh » bat khanh, ban hanh, bao hanh
ve triet » va trien
su triet » su viet, su tien
nang xa » nang x, lang xa, nang ma
luc bat » suc bat, luc nhat, luat bat
sac ky » cac ky, sai ky
kien » bien, vien, tien

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

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