Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham mat chi snippets" » "ham mat chi snippets", "pham ma chi snippets", "cham mat chi snippets", "pham mat chinh snippets", "pham soat chi 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 mat chi 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 mat chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham mat chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham mat chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.