Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
vu sach » vu bach, su sach, vu khach
cao hoi » cau hoi, co hoi, cao hoc
cao luc » bao luc, cao duc, cao suc
va tinh » may tinh
tinh va » tich va, trinh van, trinh vat
va cao » va cac, va co, va dao
luc va » duc va, tuc va, loc va
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (vu sach)) ky nang cao hoi. lieu va cao luc va tinh va ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (vu sach)) ky nang cao hoi. lieu va cao luc va tinh va ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (vu sach)) ky nang cao hoi. lieu va cao luc va tinh va ((cua te) or (cua tu))*.