Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
bat hanh » bat khanh, ban hanh, bao hanh
nhan luc » nang luc
su triet » su viet, su tien, ve triet
hieu va » lieu va, hieu qua
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
luc bat » suc bat, luc nhat, luat bat
va nhan » van nhan, ca nhan, va phan
x hoi » xa hoi, o hoi, x ho

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 ty) OR (sach tu)) nang x hoi. hieu va nhan luc bat hanh vi ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach tu)) nang x hoi. hieu va nhan luc bat hanh vi ((va triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach tu)) nang x hoi. hieu va nhan luc bat hanh vi ((va triet) or (su triet))*".