Perhaps you should try some spelling variations:
nhan luc » nang luc
ve triet » va trien, su triet
ban hanh » ban hang
luc ban » duc ban, cuc ban, luc bat
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sach ty » sach tu, sach thu, xach tay
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: thu ((sach y) or (sach ty)) nang xa hoi. hieu va nhan luc ban hanh vi ((ve triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach y) OR (sach ty)) nang xa hoi. hieu va nhan luc ban hanh vi ((ve triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: thu ((sach y) or (sach ty)) nang xa hoi. hieu va nhan luc ban hanh vi ((ve triet) or (su tien))*.