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