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