Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban tre cho snippets" » "ben tre cho snippets", "ban tro cho snippets", "benh tre cho snippets", "ban te cho snippets", "ban tra cho snippets", "ban trien cho 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 tre cho 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 tre cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban tre cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban tre cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.