Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc than so snippets" » "hoc thanh so snippets", "hoc phan so snippets", "hoc tan so snippets", "hoc than sao snippets", "hoc than vo snippets", "hoc than go 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: (((("hoc than so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc than so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc than so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc than so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.