Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat dan cau snippets" » "hat dan cau snippets", "luat dan cau snippets", "mat bang cau snippets", "mat danh cau snippets", "mat dan ca snippets", "mat dat cau snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("mat dan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat dan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat dan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat dan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.