Perhaps you should try some spelling variations:
nhung xuong » nhung huong, nhung tuong, nhung phuong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
chinh tai » chinh tri
xuong van » duong van, luong van, xuong san
chinh va » chinh ta, hanh va, tinh va
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) OR (chieu sang)) - hanh ((chinh va) or (chinh tai)) nhung xuong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu sang)) - hanh ((chinh va) OR (chinh tai)) nhung xuong van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chieu sang)) - hanh ((chinh va) or (chinh tai)) nhung xuong van toan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chieu sang)) - hanh ((chinh va) or (chinh tai)) nhung xuong van toan cao*.