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