Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
cap phan » cac phan, cao phan, cau phan
cong dan » cong san, cong tan, huong dan
cap han » cap can, cap hay, cap van
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 xanh - thanh trung ((cap han) OR (cap phan)) cong dan tai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung ((cap han) OR (cap phan)) cong dan tai cao*".