Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhu tiem can snippets" » "thu thiem can snippets", "nhu hien can snippets", "huy tiem can snippets", "nhu tiep can snippets", "nhu tiem nang snippets", "nhu dieu can 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: (((("nhu tiem can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhu tiem can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhu tiem can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhu tiem can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.