Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con chat hoa snippets" » "cong chat hoa snippets", "don chat hoa snippets", "cong nhat hoa snippets", "con thuat hoa snippets", "con chat va snippets", "con cau hoa 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 chat 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 chat hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con chat hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con chat hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.