Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son pham con snippets" » "san pham con snippets", "cong pham con snippets", "song cham con snippets", "son pham cong snippets", "son pham can snippets", "son phai con 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: (((("son pham con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son pham con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son pham con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son pham con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.