Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
thong cong » trong cong, tong cong, thong thong
chua xang » chua nang, chuc nang, chu bang
chu xanh » chu manh, chieu xanh, chuc danh
trong he » trong le, trong hiep, trong nha
dan thai » dang thai, dan than, ban thai
dan thi » dang thi, tran thi, dinh thi

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) OR (chua xang)) - thanh trong he thong cong ((dan thai) or (dan thi)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - thanh trong he thong cong ((dan thai) OR (dan thi)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) OR (chua xang)) - thanh trong he thong cong ((dan thai) or (dan thi)) cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) OR (chua xang)) - thanh trong he thong cong ((dan thai) or (dan thi)) cao*.