Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham cap da snippets" » "pham ca da snippets", "pham can da snippets", "pham cay da snippets", "pham cap do snippets", "pham cap va 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 cap da 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 cap da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham cap da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham cap da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.