Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phia van du snippets" » "phi van du snippets", "pha van du snippets", "pham van du snippets", "phia van duy snippets", "phia van dau snippets", "phia van de 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: (((("phia van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phia van du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phia van du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phia van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.