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