Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chao van do snippets" » "cao van do snippets", "hao van do snippets", "thao van do snippets", "chao van dao snippets", "chao van de snippets", "chao van du 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: (((("chao van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chao van do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chao van do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.