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