Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan duc la slippers" » "pham duc la slippers", "phan tu la slippers", "phan dau la slippers", "phan duc lai slippers", "phan duc lam slippers", "phan duc lan slippers", "phan duc la slippery", "phan duc la 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 duc la 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 duc la slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan duc la slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duc la slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.