Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham hang ke snippets" » "pham hoang ke snippets", "pham hong ke snippets", "pham hanh ke snippets", "pham thong ke snippets", "pham hanh kem snippets", "pham nhung ke 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 hang ke 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 hang ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham hang ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham hang ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.