Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
thien danh » thien anh, thien dang, thien thanh
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 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 quan dung trong bai toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu danh) or (thien danh)) - thanh thong quan dung trong bai toan cao*.