Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat can cong snippets" » "mat cac cong snippets", "mat cao cong snippets", "mat van cong snippets", "bat can cong snippets", "mat dan cong snippets", "mao can cong 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 can cong 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 can cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat can cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat can cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.