Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nam ngang » nam nganh, nam nang, nam ngan
nham nang » phap nang, cam nang, kha nang
ho chieu » theo chieu, hoc thieu, doi chieu
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung ((nam ngang) OR (nham nang)) cong ((dan than) OR (dan chan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh trung ((nam ngang) or (nham nang)) cong ((dan than) OR (dan chan)) cao~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung ((nam ngang) or (nham nang)) cong ((dan than) OR (dan chan)) cao*.