Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach duy doc snippets" » "cach dua doc snippets", "cach dung doc snippets", "cac du doc snippets", "cach day doc snippets", "cach duy dac snippets", "cach duy dot 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: (((("cach duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach duy doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach duy doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach duy doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.