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