Perhaps you should try some spelling variations:
va truyen » hoa truyen, co truyen, di truyen
thu sach » tu sach, thuat sach, thuoc sach
nhan luc » nang luc
va trien » va thiet, va tuyen, va tieng
ban hanh » ban hang
su triet » su viet, su tien, ve triet
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
luc ban » duc ban, cuc ban, luc bat
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang

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 ky lang xa hoi. hieu va nhan luc ban hanh vi ((((va trien) or (va truyen))) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky lang xa hoi. hieu va nhan luc ban hanh vi ((((va trien) OR (va truyen))) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky lang xa hoi. hieu va nhan luc ban hanh vi ((((va trien) or (va truyen))) or (su triet))*.