Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham bo doi snippets" » "pham bao doi snippets", "phan bo doi snippets", "pham ba doi snippets", "pham bo di snippets", "pham bo noi snippets", "pham co doi 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 bo doi 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 bo doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham bo doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham bo doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.