Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tinh trang » minh trang, tinh quang, tinh toan
tuong dan » huong dan, tung dan, xuong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((tinh trang) or (hanh chinh)) va nhung tuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((tinh trang) OR (hanh chinh)) va nhung tuong dan toan ban*.