Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh thang, thanh chuong
thien danh » thien anh, thien dang, thien thanh
thanh hong » thanh huong, thanh hoang, thanh cong
tieu danh » dieu danh, tiep danh, dieu hanh
quan dung » quang dung, quan duong, qua dung
trong bai » trong ban, thong bai, trong hai
bai toan » bai tap
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu danh) or (thien danh)) - ((thanh thong) OR (thanh hong)) quan dung trong bai toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu danh) OR (thien danh)) - ((thanh thong) OR (thanh hong)) quan dung trong bai toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu danh) or (thien danh)) - ((thanh thong) OR (thanh hong)) quan dung trong bai toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu danh) or (thien danh)) - ((thanh thong) OR (thanh hong)) quan dung trong bai toan cao*.