Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban la rong snippets" » "ban la trong snippets", "ban ta rong snippets", "ban lam trong snippets", "ban lay rong snippets", "ban lan rong snippets", "ban va rong 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 la rong 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 la rong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban la rong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban la rong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.