Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quy van chat snippets" » "quy cao chat snippets", "duy van chat snippets", "qua van chat snippets", "que van 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: (((("quy van 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: (((("quy van chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quy van chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quy van chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.