Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban lam chat snippets" » "ban dam chat snippets", "ban luan chat snippets", "ban cao chat snippets", "bang lam chat snippets", "van lam chat snippets", "ban ham chat 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: (((("ban lam chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban lam chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban lam chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban lam chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.