Perhaps you should try some spelling variations:
duong thanh » muong thanh, luong thanh, dung thanh
dong thanh » truong thanh
chua xang » chua nang, chuc nang, chu bang
hanh mang » nhanh mang, hanh trang, nhanh lang
chu xanh » chu manh, chieu xanh, chuc danh
toan cao » toan ban, toan tap
mang va » mang vua, hang va, bang va

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)) - hanh mang va nhung ((duong thanh) OR (dong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chua xang)) - hanh mang va nhung ((duong thanh) OR (dong thanh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chua xang)) - hanh mang va nhung ((duong thanh) OR (dong thanh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chua xang)) - hanh mang va nhung ((duong thanh) OR (dong thanh)) toan cao*.