Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
ve triet » va trien, su triet
nhan luc » nang luc
va triet » va thiet, va trien, cua triet
van hanh » van thanh, ban hanh, van anh
luc van » luoc van, luu van, duc van
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
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: ((tu sach) or (thuoc sach)) ky nang x hoi. hieu va nhan luc van hanh vi ((va triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuoc sach)) ky nang x hoi. hieu va nhan luc van hanh vi ((va triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuoc sach)) ky nang x hoi. hieu va nhan luc van hanh vi ((va triet) or (ve triet))*.