Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
danh thang » danh thanh, dinh thang, nhanh thang
anh thang » manh thang, anh thong, anh tang
dung cong » dung trong
theo toc » ho toc, thac toc, theo bo
toc sach » hoc sach, doc sach, thuoc sach
van tan » van tuan, van ban, van tai
tan cao » toan cao, tao cao, tay cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo toc sach - ((anh thang) OR (danh thang)) va ((nhung cong) or (dung cong)) van tan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo toc sach - ((anh thang) OR (danh thang)) va ((nhung cong) OR (dung cong)) van tan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo toc sach - ((anh thang) OR (danh thang)) va ((nhung cong) or (dung cong)) van tan cao".
• Adding a wildcard symbol may retrieve word variants: theo toc sach - ((anh thang) OR (danh thang)) va ((nhung cong) or (dung cong)) van tan cao*.