Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cao » thong cac, thong cap, thong cau
hang cong » dang cong, hang nong, bang cong
han cong » phan cong, hanh cong, han tong
dan tai » van tai, dan thi, han tai
tai cao » thai cao, tao cao, tai sao

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 - thanh thong cao ((han cong) OR (hang cong)) dan tai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh thong cao ((han cong) OR (hang cong)) dan tai cao*".