Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
huong cua » dung cua
cua nhung » va nhung
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - anh huong cua nhung cong dong ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - anh huong cua nhung cong dong ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - anh huong cua nhung cong dong ((toan tai) or (toan tap))*.