Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vien cua » viec cua, dien cua, tien cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hoa doi » hoa dai, hoc doi, xoa doi
hieu ve » hieu va, hieu van
cau tuc » cau truc, cau tu, cau luc
va nhan » van nhan, ca nhan, va phan
ho hoi » hoc hoi, hoa hoi, hoi hoi
ve cau » ke cau, va cau, ve cac
tuc va » thuc va, truc va, tuc xa

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