Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nga de cac snippets" » "ngay de cac snippets", "nga den cac snippets", "ga de cac snippets", "nga ve cac snippets", "nga de cai 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: (((("nga de cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nga de cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nga de cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nga de cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.