Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
hanh mang » nhanh mang, hanh trang, nhanh lang
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
mang va » mang vua, hang va, bang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dien sach - hanh mang va nhung cong dan ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dien sach - hanh mang va nhung cong dan ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo dien sach - hanh mang va nhung cong dan ((toan cao) OR (toan tap))*.