Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham hoc chi snippets" » "phap hoc chi snippets", "phau hoc chi snippets", "pham hoa chi snippets", "pham hoc chia snippets", "pham hoc cho snippets", "pham hoc chu 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: (((("pham hoc 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: (((("pham hoc chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham hoc chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham hoc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.