Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan tien » nhan vien, nhan dien, phan tien
tien cua » trien cua, tiep cua, dien cua
va nhan » van nhan, ca nhan, va phan
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
hoa hoi » khoa hoi, hoa hoc, hoa doi
ho hoi » hoc hoi, hoi hoi, co 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) or (hoa hoi)). hieu ve cau luc va nhan tien cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang ((ho hoi) OR (hoa hoi)). hieu ve cau luc va nhan tien cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang ((ho hoi) or (hoa hoi)). hieu ve cau luc va nhan tien cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky nang ((ho hoi) or (hoa hoi)). hieu ve cau luc va nhan tien cua triet*.