Perhaps you should try some spelling variations:
nhan dien » nhan vien, nhan dieu, nhan dan
cua triet » cua viet, su triet, va triet
dien cua » dieu cua, dien cuc, dien cu
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang ho » nang hoc, nang co, tang ho
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
va nhan » van nhan, ca nhan, va phan
ho hoi » hoc hoi, hoa hoi, hoi hoi
ve cau » ke cau, va cau, ve cac
luc va » duc va, tuc va, loc va

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 (su sach)) ky nang ho hoi. hieu ve cau luc va nhan dien cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang ho hoi. hieu ve cau luc va nhan dien cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang ho hoi. hieu ve cau luc va nhan dien cua triet*.