Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con so hoa snippets" » "cong so hoa snippets", "hon so hoa snippets", "con bo hoa snippets", "con do hoa snippets", "con so ha 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 so hoa 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 so hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con so hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con so hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.