Perhaps you should try some spelling variations:
da phuong » dia phuong, dan phuong, day phuong
xa huong » xa phuong, va huong, xa muong
hoi cua » hoi chuc
doi cua » dai cua
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 hoc » co hoc, cho hoc, chat hoc

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