Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham ly hoc snippets" » "phap ly hoc snippets", "pham ky hoc snippets", "pham le hoc snippets", "pham y hoc snippets", "pham li hoc 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 ly hoc 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 ly hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham ly hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham ly hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.