Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hap dan slippers" » "phan phap dan slippers", "phan lap dan slippers", "phan tap dan slippers", "phan hat dan slippers", "phan hai dan slippers", "phan ham dan slippers", "phan hap dan slippery", "phan hap dan grippers"
"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: (((("phan hap dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan hap dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hap dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hap dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.