Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
ban hanh » ban hang
nhan luc » nang luc
tu sach » thu sach, su sach, te sach
luc ban » duc ban, cuc ban, luc bat
sach ty » sach y, sach tu, sach thu
va nhan » van nhan, ca nhan, va phan
hang ca » hang va, nang cao, hang tai
hang xa » hoang xa, hang va, lang xa
su tien » su kien, su hien, tu tieng

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 ty ((hang xa) or (hang ca)) hoi. lieu va nhan luc ban hanh vi ((va triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((hang xa) OR (hang ca)) hoi. lieu va nhan luc ban hanh vi ((va triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((hang xa) or (hang ca)) hoi. lieu va nhan luc ban hanh vi ((va triet) or (su tien))*.