Perhaps you should try some spelling variations:
da phuong » dia phuong, dan phuong, day phuong
xa huong » xa phuong, xa muong, ga huong
va huong » va thuong, va phuong, va tuong
hoi cua » hoi chuc
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
cham tu » pham tu, cam tu, chai tu
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
cao hoi » cau hoi, co hoi, cao hoc
cua tre » cua te, cuu tre, cua triet

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 ky nang cao hoi. hieu ve cham tu ((((xa huong) OR (va huong))) or (da phuong)) hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang cao hoi. hieu ve cham tu ((((xa huong) OR (va huong))) OR (da phuong)) hoi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang cao hoi. hieu ve cham tu ((((xa huong) OR (va huong))) or (da phuong)) hoi cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang cao hoi. hieu ve cham tu ((((xa huong) OR (va huong))) or (da phuong)) hoi cua tre*.