Perhaps you should try some spelling variations:
thanh tung » thanh cong
dai khung » dam khung, dai khoang, mai hung
dai khong » dai khoang, dai hong, dai phong
theo cao » theo cap, theo giao, thuoc cao
cao sach » co sach, ao sach, cau sach
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cao sach - thanh tung ((dai khung) OR (dai khong)) huong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo cao sach - thanh tung ((dai khung) OR (dai khong)) huong dan than cau".
• Adding a wildcard symbol may retrieve word variants: theo cao sach - thanh tung ((dai khung) OR (dai khong)) huong dan than cau*.