Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham can he snippets" » "pham van he snippets", "pham lan he snippets", "pham ca he snippets", "pham can ho snippets", "pham can ve snippets", "pham can we 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 can he 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 can he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham can he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham can he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.