Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con than so snippets" » "cong thanh so snippets", "cong thang so snippets", "son thanh so snippets", "con than sao snippets", "con than vo snippets", "con 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: (((("con 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: (((("con than so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con than so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con than so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.