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