Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chap dao do snippets" » "chap dat do snippets", "chap lao do snippets", "phap dao do snippets", "chap dao o snippets", "chap dao ho snippets", "chap dao dong 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: (((("chap dao 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: (((("chap dao do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chap dao do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap dao do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.